README.md
1getID3() by James Heinrich (<info@getid3.org>)
2===
3**Available at <http://getid3.sourceforge.net> or <https://www.getid3.org>**
4
5getID3() is released under multiple licenses. You may choose from the following licenses, and use getID3 according to the terms of the license most suitable to your project.
6
7**GNU GPL:**
8
9* [v3](https://gnu.org/licenses/gpl.html)
10
11* [v2](https://gnu.org/licenses/old-licenses/gpl-2.0.html)
12
13* [v1](https://gnu.org/licenses/old-licenses/gpl-1.0.html)
14
15**GNU LGPL:**
16
17* [v3](https://gnu.org/licenses/lgpl.html)
18
19**Mozilla MPL:**
20
21* [v2](https://www.mozilla.org/MPL/2.0/)
22
23**getID3 Commercial License:**
24
25* [gCL](https://www.getid3.org/#gCL) (payment required)
26
27* * *
28Copies of each of the above licenses are included in the `licenses/`
29directory of the getID3 distribution.
30
31If you want to donate, there is a link on <https://www.getid3.org> for PayPal donations.
32
33
34
35Quick Start
36===
37
38**Q:** How can I check that getID3() works on my server/files?
39
40**A:** Unzip getID3() to a directory, then access `/demos/demo.browse.php`
41
42
43
44Support
45===
46
47**Q:** I have a question, or I found a bug. What do I do?
48
49**A:** The preferred method of support requests and/or bug reports is the forum at <http://support.getid3.org/>
50
51
52
53Sourceforge Notification
54===
55
56It's highly recommended that you sign up for notification from
57Sourceforge for when new versions are released. Please visit:
58<http://sourceforge.net/project/showfiles.php?group_id=55859>
59and click the little "monitor package" icon/link. If you're
60previously signed up for the mailing list, be aware that it has
61been discontinued, only the automated Sourceforge notification
62will be used from now on.
63
64
65
66What does getID3() do?
67===
68
69Reads & parses (to varying degrees):
70
71+ tags:
72 * APE (v1 and v2)
73 * ID3v1 (& ID3v1.1)
74 * ID3v2 (v2.4, v2.3, v2.2)
75 * Lyrics3 (v1 & v2)
76
77+ audio-lossy:
78 * MP3/MP2/MP1
79 * MPC / Musepack
80 * Ogg (Vorbis, OggFLAC, Speex, Opus)
81 * AAC / MP4
82 * AC3
83 * DTS
84 * RealAudio
85 * Speex
86 * DSS
87 * VQF
88
89+ audio-lossless:
90 * AIFF
91 * AU
92 * Bonk
93 * CD-audio (*.cda)
94 * FLAC
95 * LA (Lossless Audio)
96 * LiteWave
97 * LPAC
98 * MIDI
99 * Monkey's Audio
100 * OptimFROG
101 * RKAU
102 * Shorten
103 * Tom's lossless Audio Kompressor (TAK)
104 * TTA
105 * VOC
106 * WAV (RIFF)
107 * WavPack
108
109+ audio-video:
110 * ASF: ASF, Windows Media Audio (WMA), Windows Media Video (WMV)
111 * AVI (RIFF)
112 * Flash
113 * Matroska (MKV)
114 * MPEG-1 / MPEG-2
115 * NSV (Nullsoft Streaming Video)
116 * Quicktime (including MP4)
117 * RealVideo
118
119+ still image:
120 * BMP
121 * GIF
122 * JPEG
123 * PNG
124 * TIFF
125 * SWF (Flash)
126 * PhotoCD
127
128+ data:
129 * ISO-9660 CD-ROM image (directory structure)
130 * SZIP (limited support)
131 * ZIP (directory structure)
132 * TAR
133 * CUE
134
135
136+ Writes:
137 * ID3v1 (& ID3v1.1)
138 * ID3v2 (v2.3 & v2.4)
139 * VorbisComment on OggVorbis
140 * VorbisComment on FLAC (not OggFLAC)
141 * APE v2
142 * Lyrics3 (delete only)
143
144
145
146Requirements
147===
148
149* PHP 4.2.0 up to 5.2.x for getID3() 1.7.x (and earlier)
150* PHP 5.0.5 (or higher) for getID3() 1.8.x (and up)
151* PHP 5.0.5 (or higher) for getID3() 2.0.x (and up)
152* at least 4MB memory for PHP. 8MB or more is highly recommended.
153 12MB is required with all modules loaded.
154
155
156
157Usage
158===
159
160See /demos/demo.basic.php for a very basic use of getID3() with no
161fancy output, just scanning one file.
162
163See structure.txt for the returned data structure.
164
165**For an example of a complete directory-browsing, file-scanning implementation of getID3(), please run /demos/demo.browse.php**
166
167See /demos/demo.mysql.php for a sample recursive scanning code that
168scans every file in a given directory, and all sub-directories, stores
169the results in a database and allows various analysis / maintenance
170operations
171
172To analyze remote files over HTTP or FTP you need to copy the file
173locally first before running getID3(). Your code would look something
174like this:
175
176``` php
177<?php
178
179// Copy remote file locally to scan with getID3()
180$remotefilename = 'http://www.example.com/filename.mp3';
181if ($fp_remote = fopen($remotefilename, 'rb')) {
182 $localtempfilename = tempnam('/tmp', 'getID3');
183 if ($fp_local = fopen($localtempfilename, 'wb')) {
184 while ($buffer = fread($fp_remote, 8192)) {
185 fwrite($fp_local, $buffer);
186 }
187 fclose($fp_local);
188 // Initialize getID3 engine
189 $getID3 = new getID3;
190 $ThisFileInfo = $getID3->analyze($localtempfilename);
191 // Delete temporary file
192 unlink($localtempfilename);
193 }
194 fclose($fp_remote);
195}
196
197```
198
199
200**See /demos/demo.write.php for how to write tags.**
201
202What does the returned data structure look like?
203===
204
205See structure.txt
206
207It is recommended that you look at the output of
208/demos/demo.browse.php scanning the file(s) you're interested in to
209confirm what data is actually returned for any particular filetype in
210general, and your files in particular, as the actual data returned
211may vary considerably depending on what information is available in
212the file itself.
213
214
215
216Notes
217===
218
219getID3() 1.x:
220---
221If the format parser encounters a critical problem, it will return
222something in `$fileinfo['error']`, describing the encountered error. If
223a less critical error or notice is generated it will appear in
224`$fileinfo['warning']`. Both keys may contain more than one warning or
225error. If something is returned in ['error'] then the file was not
226correctly parsed and returned data may or may not be correct and/or
227complete. If something is returned in `['warning']` (and not `['error']`)
228then the data that is returned is OK - usually getID3() is reporting
229errors in the file that have been worked around due to known bugs in
230other programs. Some warnings may indicate that the data that is
231returned is OK but that some data could not be extracted due to
232errors in the file.
233
234getID3() 2.x:
235---
236See above except errors are thrown (so you will only get one error).
237
238Disclaimer
239===
240
241getID3() has been tested on many systems, on many types of files,
242under many operating systems, and is generally believe to be stable
243and safe. That being said, there is still the chance there is an
244undiscovered and/or unfixed bug that may potentially corrupt your
245file, especially within the writing functions. By using getID3() you
246agree that it's not my fault if any of your files are corrupted.
247In fact, I'm not liable for anything :)
248
249License
250===
251
252GNU General Public License - see license.txt
253
254This program is free software; you can redistribute it and/or
255modify it under the terms of the GNU General Public License
256as published by the Free Software Foundation; either version 2
257of the License, or (at your option) any later version.
258
259This program is distributed in the hope that it will be useful,
260but WITHOUT ANY WARRANTY; without even the implied warranty of
261MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
262GNU General Public License for more details.
263
264You should have received a copy of the GNU General Public License
265along with this program; if not, write to:
266Free Software Foundation, Inc.
26759 Temple Place - Suite 330
268Boston, MA 02111-1307, USA.
269
270FAQ:
271---
272**Q:** Can I use getID3() in my program? Do I need a commercial license?
273
274**A:** You're generally free to use getID3 however you see fit. The only
275 case in which you would require a commercial license is if you're
276 selling your closed-source program that integrates getID3. If you
277 sell your program including a copy of getID3, that's fine as long
278 as you include a copy of the sourcecode when you sell it. Or you
279 can distribute your code without getID3 and say "download it from
280 getid3.sourceforge.net"
281
282
283
284Why is it called "getID3()" if it does so much more than just that?
285===
286
287v0.1 did in fact just do that. I don't have a copy of code that old, but I
288could essentially write it today with a one-line function:
289
290``` php
291function getID3($filename) { return unpack('a3TAG/a30title/a30artist/a30album/a4year/a28comment/c1track/c1genreid', substr(file_get_contents($filename), -128)); }
292
293```
294
295
296Future Plans
297===
298<https://www.getid3.org/phpBB3/viewforum.php?f=7>
299
300* Better support for MP4 container format
301* Scan for appended ID3v2 tag at end of file per ID3v2.4 specs (Section 5.0)
302* Support for JPEG-2000 (http://www.morgan-multimedia.com/jpeg2000_overview.htm)
303* Support for MOD (mod/stm/s3m/it/xm/mtm/ult/669)
304* Support for ACE (thanks Vince)
305* Support for Ogg other than Vorbis, Speex and OggFlac (ie. Ogg+Xvid)
306* Ability to create Xing/LAME VBR header for VBR MP3s that are missing VBR header
307* Ability to "clean" ID3v2 padding (replace invalid padding with valid padding)
308* Warn if MP3s change version mid-stream (in full-scan mode)
309* check for corrupt/broken mid-file MP3 streams in histogram scan
310* Support for lossless-compression formats
311 (http://www.firstpr.com.au/audiocomp/lossless/#Links)
312 (http://compression.ca/act-sound.html)
313 (http://web.inter.nl.net/users/hvdh/lossless/lossless.htm)
314* Support for RIFF-INFO chunks
315 * http://lotto.st-andrews.ac.uk/~njh/tag_interchange.html
316 (thanks Nick Humfrey <njhØsurgeradio*co*uk>)
317 * http://abcavi.narod.ru/sof/abcavi/infotags.htm
318 (thanks Kibi)
319* Better support for Bink video
320* http://www.hr/josip/DSP/AudioFile2.html
321* http://www.pcisys.net/~melanson/codecs/
322* Detect mp3PRO
323* Support for PSD
324* Support for JPC
325* Support for JP2
326* Support for JPX
327* Support for JB2
328* Support for IFF
329* Support for ICO
330* Support for ANI
331* Support for EXE (comments, author, etc) (thanks p*quaedackersØplanet*nl)
332* Support for DVD-IFO (region, subtitles, aspect ratio, etc)
333 (thanks p*quaedackersØplanet*nl)
334* More complete support for SWF - parsing encapsulated MP3 and/or JPEG content
335 (thanks n8n8Øyahoo*com)
336* Support for a2b
337* Optional scan-through-frames for AVI verification
338 (thanks rockcohenØmassive-interactive*nl)
339* Support for TTF (thanks infoØbutterflyx*com)
340* Support for DSS (https://www.getid3.org/phpBB3/viewtopic.php?t=171)
341* Support for SMAF (http://smaf-yamaha.com/what/demo.html)
342 https://www.getid3.org/phpBB3/viewtopic.php?t=182
343* Support for AMR (https://www.getid3.org/phpBB3/viewtopic.php?t=195)
344* Support for 3gpp (https://www.getid3.org/phpBB3/viewtopic.php?t=195)
345* Support for ID4 (http://www.wackysoft.cjb.net grizlyY2KØhotmail*com)
346* Parse XML data returned in Ogg comments
347* Parse XML data from Quicktime SMIL metafiles (klausrathØmac*com)
348* ID3v2 genre string creator function
349* More complete parsing of JPG
350* Support for all old-style ASF packets
351* ASF/WMA/WMV tag writing
352* Parse declared T??? ID3v2 text information frames, where appropriate
353 (thanks Christian Fritz for the idea)
354* Recognize encoder:
355 http://www.guerillasoft.com/EncSpot2/index.html
356 http://ff123.net/identify.html
357 http://www.hydrogenaudio.org/?act=ST&f=16&t=9414
358 http://www.hydrogenaudio.org/?showtopic=11785
359* Support for other OS/2 bitmap structures: Bitmap Array('BA'),
360 Color Icon('CI'), Color Pointer('CP'), Icon('IC'), Pointer ('PT')
361 http://netghost.narod.ru/gff/graphics/summary/os2bmp.htm
362* Support for WavPack RAW mode
363* ASF/WMA/WMV data packet parsing
364* ID3v2FrameFlagsLookupTagAlter()
365* ID3v2FrameFlagsLookupFileAlter()
366* obey ID3v2 tag alter/preserve/discard rules
367* http://www.geocities.com/SiliconValley/Sector/9654/Softdoc/Illyrium/Aolyr.htm
368* proper checking for LINK/LNK frame validity in ID3v2 writing
369* proper checking for ASPI-TLEN frame validity in ID3v2 writing
370* proper checking for COMR frame validity in ID3v2 writing
371* http://www.geocities.co.jp/SiliconValley-Oakland/3664/index.html
372* decode GEOB ID3v2 structure as encoded by RealJukebox,
373 decode NCON ID3v2 structure as encoded by MusicMatch
374 (probably won't happen - the formats are proprietary)
375
376
377
378Known Bugs/Issues in getID3() that may be fixed eventually
379===
380<https://www.getid3.org/phpBB3/viewtopic.php?t=25>
381
382* Cannot determine bitrate for MPEG video with VBR video data
383 (need documentation)
384* Interlace/progressive cannot be determined for MPEG video
385 (need documentation)
386* MIDI playtime is sometimes inaccurate
387* AAC-RAW mode files cannot be identified
388* WavPack-RAW mode files cannot be identified
389* mp4 files report lots of "Unknown QuickTime atom type"
390 (need documentation)
391* Encrypted ASF/WMA/WMV files warn about "unhandled GUID
392 ASF_Content_Encryption_Object"
393* Bitrate split between audio and video cannot be calculated for
394 NSV, only the total bitrate. (need documentation)
395* All Ogg formats (Vorbis, OggFLAC, Speex) are affected by the
396 problem of large VorbisComments spanning multiple Ogg pages, but
397 but only OggVorbis files can be processed with vorbiscomment.
398* The version of "head" supplied with Mac OS 10.2.8 (maybe other
399 versions too) does only understands a single option (-n) and
400 therefore fails. getID3 ignores this and returns wrong md5_data.
401
402
403
404Known Bugs/Issues in getID3() that cannot be fixed
405---
406<https://www.getid3.org/phpBB3/viewtopic.php?t=25>
407
408* 32-bit PHP installations only:
409 Files larger than 2GB cannot always be parsed fully by getID3()
410 due to limitations in the 32-bit PHP filesystem functions.
411 NOTE: Since v1.7.8b3 there is partial support for larger-than-
412 2GB files, most of which will parse OK, as long as no critical
413 data is located beyond the 2GB offset.
414 Known will-work:
415 * all file formats on 64-bit PHP
416 * ZIP (format doesn't support files >2GB)
417 * FLAC (current encoders don't support files >2GB)
418 Known will-not-work:
419 * ID3v1 tags (always located at end-of-file)
420 * Lyrics3 tags (always located at end-of-file)
421 * APE tags (always located at end-of-file)
422 Maybe-will-work:
423 * Quicktime (will work if needed metadata is before 2GB offset,
424 that is if the file has been hinted/optimized for streaming)
425 * RIFF.WAV (should work fine, but gives warnings about not being
426 able to parse all chunks)
427 * RIFF.AVI (playtime will probably be wrong, is only based on
428 "movi" chunk that fits in the first 2GB, should issue error
429 to show that playtime is incorrect. Other data should be mostly
430 correct, assuming that data is constant throughout the file)
431
432
433
434Known Bugs/Issues in other programs
435---
436<https://www.getid3.org/phpBB3/viewtopic.php?t=25>
437
438* Windows Media Player (up to v11) and iTunes (up to v10+) do
439 not correctly handle ID3v2.3 tags with UTF-16BE+BOM
440 encoding (they assume the data is UTF-16LE+BOM and either
441 crash (WMP) or output Asian character set (iTunes)
442* Winamp (up to v2.80 at least) does not support ID3v2.4 tags,
443 only ID3v2.3
444 see: http://forums.winamp.com/showthread.php?postid=387524
445* Some versions of Helium2 (www.helium2.com) do not write
446 ID3v2.4-compliant Frame Sizes, even though the tag is marked
447 as ID3v2.4) (detected by getID3())
448* MP3ext V3.3.17 places a non-compliant padding string at the end
449 of the ID3v2 header. This is supposedly fixed in v3.4b21 but
450 only if you manually add a registry key. This fix is not yet
451 confirmed. (detected by getID3())
452* CDex v1.40 (fixed by v1.50b7) writes non-compliant Ogg comment
453 strings, supposed to be in the format "NAME=value" but actually
454 written just "value" (detected by getID3())
455* Oggenc 0.9-rc3 flags the encoded file as ABR whether it's
456 actually ABR or VBR.
457* iTunes (versions "X v2.0.3", "v3.0.1" are known-guilty, probably
458 other versions are too) writes ID3v2.3 comment tags using a
459 frame name 'COM ' which is not valid for ID3v2.3+ (it's an
460 ID3v2.2-style frame name) (detected by getID3())
461* MP2enc does not encode mono CBR MP2 files properly (half speed
462 sound and double playtime)
463* MP2enc does not encode mono VBR MP2 files properly (actually
464 encoded as stereo)
465* tooLAME does not encode mono VBR MP2 files properly (actually
466 encoded as stereo)
467* AACenc encodes files in VBR mode (actually ABR) even if CBR is
468 specified
469* AAC/ADIF - bitrate_mode = cbr for vbr files
470* LAME 3.90-3.92 prepends one frame of null data (space for the
471 LAME/VBR header, but it never gets written) when encoding in CBR
472 mode with the DLL
473* Ahead Nero encodes TwinVQF with a DSIZ value (which is supposed
474 to be the filesize in bytes) of "0" for TwinVQF v1.0 and "1" for
475 TwinVQF v2.0 (detected by getID3())
476* Ahead Nero encodes TwinVQF files 1 second shorter than they
477 should be
478* AAC-ADTS files are always actually encoded VBR, even if CBR mode
479 is specified (the CBR-mode switches on the encoder enable ABR
480 mode, not CBR as such, but it's not possible to tell the
481 difference between such ABR files and true VBR)
482* STREAMINFO.audio_signature in OggFLAC is always null. "The reason
483 it's like that is because there is no seeking support in
484 libOggFLAC yet, so it has no way to go back and write the
485 computed sum after encoding. Seeking support in Ogg FLAC is the
486 #1 item for the next release." - Josh Coalson (FLAC developer)
487 NOTE: getID3() will calculate md5_data in a method similar to
488 other file formats, but that value cannot be compared to the
489 md5_data value from FLAC data in a FLAC file format.
490* STREAMINFO.audio_signature is not calculated in FLAC v0.3.0 &
491 v0.4.0 - getID3() will calculate md5_data in a method similar to
492 other file formats, but that value cannot be compared to the
493 md5_data value from FLAC v0.5.0+
494* RioPort (various versions including 2.0 and 3.11) tags ID3v2 with
495 a WCOM frame that has no data portion
496* Earlier versions of Coolplayer adds illegal ID3 tags to Ogg Vorbis
497 files, thus making them corrupt.
498* Meracl ID3 Tag Writer v1.3.4 (and older) incorrectly truncates the
499 last byte of data from an MP3 file when appending a new ID3v1 tag.
500 (detected by getID3())
501* Lossless-Audio files encoded with and without the -noseek switch
502 do actually differ internally and therefore cannot match md5_data
503* iTunes has been known to append a new ID3v1 tag on the end of an
504 existing ID3v1 tag when ID3v2 tag is also present
505 (detected by getID3())
506* MediaMonkey may write a blank RGAD ID3v2 frame but put actual
507 replay gain adjustments in a series of user-defined TXXX frames
508 (detected and handled by getID3() since v1.9.2)
509
510
511
512
513Reference material:
514===
515
516[www.id3.org](http://www.id3.org) material now mirrored at <http://id3lib.sourceforge.net/id3/>
517
518* http://www.id3.org/id3v2.4.0-structure.txt
519* http://www.id3.org/id3v2.4.0-frames.txt
520* http://www.id3.org/id3v2.4.0-changes.txt
521* http://www.id3.org/id3v2.3.0.txt
522* http://www.id3.org/id3v2-00.txt
523* http://www.id3.org/mp3frame.html
524* http://minnie.tuhs.org/pipermail/mp3encoder/2001-January/001800.html <mathewhendry@hotmail.com>
525* http://www.dv.co.yu/mpgscript/mpeghdr.htm
526* http://www.mp3-tech.org/programmer/frame_header.html
527* http://users.belgacom.net/gc247244/extra/tag.html
528* http://gabriel.mp3-tech.org/mp3infotag.html
529* http://www.id3.org/iso4217.html
530* http://www.unicode.org/Public/MAPPINGS/ISO8859/8859-1.TXT
531* http://www.xiph.org/ogg/vorbis/doc/framing.html
532* http://www.xiph.org/ogg/vorbis/doc/v-comment.html
533* http://leknor.com/code/php/class.ogg.php.txt
534* http://www.id3.org/iso639-2.html
535* http://www.id3.org/lyrics3.html
536* http://www.id3.org/lyrics3200.html
537* http://www.psc.edu/general/software/packages/ieee/ieee.html
538* http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee-expl.html
539* http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/binary.html
540* http://www.jmcgowan.com/avi.html
541* http://www.wotsit.org/
542* http://www.herdsoft.com/ti/davincie/davp3xo2.htm
543* http://www.mathdogs.com/vorbis-illuminated/bitstream-appendix.html
544* "Standard MIDI File Format" by Dustin Caldwell (from www.wotsit.org)
545* http://midistudio.com/Help/GMSpecs_Patches.htm
546* http://www.xiph.org/archives/vorbis/200109/0459.html
547* http://www.replaygain.org/
548* http://www.lossless-audio.com/
549* http://download.microsoft.com/download/winmediatech40/Doc/1.0/WIN98MeXP/EN-US/ASF_Specification_v.1.0.exe
550* http://mediaxw.sourceforge.net/files/doc/Active%20Streaming%20Format%20(ASF)%201.0%20Specification.pdf
551* http://www.uni-jena.de/~pfk/mpp/sv8/ (archived at http://www.hydrogenaudio.org/musepack/klemm/www.personal.uni-jena.de/~pfk/mpp/sv8/)
552* http://jfaul.de/atl/
553* http://www.uni-jena.de/~pfk/mpp/ (archived at http://www.hydrogenaudio.org/musepack/klemm/www.personal.uni-jena.de/~pfk/mpp/)
554* http://www.libpng.org/pub/png/spec/png-1.2-pdg.html
555* http://www.real.com/devzone/library/creating/rmsdk/doc/rmff.htm
556* http://www.fastgraph.com/help/bmp_os2_header_format.html
557* http://netghost.narod.ru/gff/graphics/summary/os2bmp.htm
558* http://flac.sourceforge.net/format.html
559* http://www.research.att.com/projects/mpegaudio/mpeg2.html
560* http://www.audiocoding.com/wiki/index.php?page=AAC
561* http://libmpeg.org/mpeg4/doc/w2203tfs.pdf
562* http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
563* http://developer.apple.com/techpubs/quicktime/qtdevdocs/RM/frameset.htm
564* http://www.nullsoft.com/nsv/
565* http://www.wotsit.org/download.asp?f=iso9660
566* http://sandbox.mc.edu/~bennet/cs110/tc/tctod.html
567* http://www.cdroller.com/htm/readdata.html
568* http://www.speex.org/manual/node10.html
569* http://www.harmony-central.com/Computer/Programming/aiff-file-format.doc
570* http://www.faqs.org/rfcs/rfc2361.html
571* http://ghido.shelter.ro/
572* http://www.ebu.ch/tech_t3285.pdf
573* http://www.sr.se/utveckling/tu/bwf
574* http://ftp.aessc.org/pub/aes46-2002.pdf
575* http://cartchunk.org:8080/
576* http://www.broadcastpapers.com/radio/cartchunk01.htm
577* http://www.hr/josip/DSP/AudioFile2.html
578* http://home.attbi.com/~chris.bagwell/AudioFormats-11.html
579* http://www.pure-mac.com/extkey.html
580* http://cesnet.dl.sourceforge.net/sourceforge/bonkenc/bonk-binary-format-0.9.txt
581* http://www.headbands.com/gspot/
582* http://www.openswf.org/spec/SWFfileformat.html
583* http://j-faul.virtualave.net/
584* http://www.btinternet.com/~AnthonyJ/Atari/programming/avr_format.html
585* http://cui.unige.ch/OSG/info/AudioFormats/ap11.html
586* http://sswf.sourceforge.net/SWFalexref.html
587* http://www.geocities.com/xhelmboyx/quicktime/formats/qti-layout.txt
588* http://www-lehre.informatik.uni-osnabrueck.de/~fbstark/diplom/docs/swf/Flash_Uncovered.htm
589* http://developer.apple.com/quicktime/icefloe/dispatch012.html
590* http://www.csdn.net/Dev/Format/graphics/PCD.htm
591* http://tta.iszf.irk.ru/
592* http://www.atsc.org/standards/a_52a.pdf
593* http://www.alanwood.net/unicode/
594* http://www.freelists.org/archives/matroska-devel/07-2003/msg00010.html
595* http://www.its.msstate.edu/net/real/reports/config/tags.stats
596* http://homepages.slingshot.co.nz/~helmboy/quicktime/formats/qtm-layout.txt
597* http://brennan.young.net/Comp/LiveStage/things.html
598* http://www.multiweb.cz/twoinches/MP3inside.htm
599* http://www.geocities.co.jp/SiliconValley-Oakland/3664/alittle.html#GenreExtended
600* http://www.mactech.com/articles/mactech/Vol.06/06.01/SANENormalized/
601* http://www.unicode.org/unicode/faq/utf_bom.html
602* http://tta.corecodec.org/?menu=format
603* http://www.scvi.net/nsvformat.htm
604* http://pda.etsi.org/pda/queryform.asp
605* http://cpansearch.perl.org/src/RGIBSON/Audio-DSS-0.02/lib/Audio/DSS.pm
606* http://trac.musepack.net/trac/wiki/SV8Specification
607* http://wyday.com/cuesharp/specification.php
608* http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
609* http://wiki.hydrogenaud.io/index.php?title=TAK
610