4.3.0 (2008-01-13)

• DVD Audio Extractor is now developed on Vista. Win95, Win98, Windows ME and Windows NT platforms are no longer supported. Please stay on 4.2.2 if you are using one of these platforms.
• Added support to FLAC tags, updated libFLAC library to version 1.2.1.
• Updated Vorbis library to version 1.2.0.
• Other minor enhancements.

4.2.2 (2007-07-08)

• Updated libFLAC library to version 1.1.4.
• Allow browse and save to network folder.
• Remember last used sample rate.
• Fixed an error on opening About Dialog.

4.2.1 (2007-01-16)

• Fixed a bug in version 4.2.0 that the newly included version of libFLAC.dll could not be opened on some systems.

4.2.0 (2006-12-21)

• Changed back to use old user interface due to user feedbacks. It allows easier changing of audio streams, while still keep it easy to select chapters in all titles.
• The main window is now resizable.
• Updated Lame library to version 3.97.
• Updated libFLAC library to version 1.1.3.
• Other minor enhancements.

4.1.1 (2006-09-04)

• More accurate calculation on needed disk space.
• Always show audio stream selection combo box, to make it more obviously to change active stream.
• Remember last browsed folders.

4.1.0 (2006-07-12)

• New feature: Added video preview.
• Bug fix: a small part of audio at the end of chapter get skipped in preview mode.
• Added speed meter at the encoding page so that it's more easy to see the processing speed.

4.0.2 (2006-04-22)

• Fixed a bug that caused the program to crash when some DVD title contains no audio stream.
• Fixed a bug that caused silent MP3 output.

4.0.1 (2006-04-18)

• New user interface for step 1. This allows easier selection of chapters in different titles. And all the selected chapters can be previewed/played together.
• Enabled thread reading at background. This brings even faster extracting speed.
• Other minor enhancements.

3.5.1 (2006-02-12)

• Added accelerator keys for bitmap buttons: "Alt+P" for Play, "Alt+U" for Pause, "Alt+T" for Stop, "Alt+>" for Next Chapter, "Alt+<" for Last Chapter, and "Alt+F" for Refresh DVD-ROM, "Alt+W" for Browse.
• Press "Enter" on any button should now get it clicked.
• For DVD disc that doesn't have valid title in it, ignore it instead of showing up an exception error.

3.5.0 (2006-01-05)

• New feature: Added support to FLAC format. Now you can extract to FLAC to save space and get around the 4G size limit of Wave files. It's also possible to save Audio CD Image in FLAC format.
• Improved online-help. Press F1 in Step 2 will go directly to the detailed help page of selected format.
• Uses less run-time memory than before.
• Updated OGG/Vorbis libraries to version 1.1.2.
• Other minor enhancements.

3.4.1 (2005-11-15)

• When converting to CD, selecting "break tracks by chapter" will now insert 2 seconds silence.
• For best compatibility with old software, use old PCM Wave format for Mono or Stereo wav output.
• Fixed a bug in 3.4.0 that caused skips on some audio stream.
• Added a warning when output wav file is larger than 4G.
• Try to read DVD label and use it as album name when ID3 tag not specified.
• Other minor enhancements.

3.4.0 (2005-11-11)

• New feature: Now all titles can be extracted at once.
• Uses Extensible Wave Format. This allow created multi-channel wav files be played on Windows Media Player.
• All chapters of first title are selected by default.
• Improved normalization speed.

3.3.3 (2005-09-08)

• Implemented full context tooltips to all controls on the user interface.
• Fixed a DLL loading error on Win98.

3.3.2 (2005-08-09)

• Writes adjusted bitrate info into MP3 header, so that the playback time shows up correctly in Windows Media Player.
• Uses user's temp dir for output folder by default.
• Other minor enhancements on UI.

3.3.1 (2005-07-14)

• Fixed a bug which caused Access Violation Exception on some DVD discs.
• Updated OGG/Vorbis libraries to version 1.1.1.

3.3.0 (2005-06-12)

• New feature: Added ripping from single VOB file. This can be used as a workaround when IFO files are missing or contain error.
• Fixed a bug on decoding Mono audio stream to MP3 format.
• Fixed a bug which caused error on LFE channel when decoding DTS to 6 Mono wav.

3.2.1 (2005-05-18)

• Added exception handling. The program is now more robust on not well made DVDs which contain invalid IFO information.
• More accurate time length info.

3.2.0 (2005-04-11)

• Improved DVD reading library. Now reads UDF formatted DVD discs and handles encrypted discs better.
• Downmix 5.1 channel audio to Dolby surround compatible stereo since this is more preferred than plain stereo.
• Fixed a program loading failure caused by DVD information error in IFO files.

3.1.0 (2005-02-23)

• Enhanced MP3 encoding settings. Added LAME presets and provided better support to LAME encoder.
• Loads OGG Vorbis and LAME library only when used.

3.0.2 (2005-01-16)

• Fixed a bug in the audio playback/preview function.

3.0.1 (2005-01-10)

• New feature: Added a CD Image and Cuesheet mode that can convert selected audio into an Audio CD image, which can be imported directly into popular CD burning software like Nero, EAC or CDRWin. Creating an Audio CD from DVD can't be easier.
• Improved keyboard accessibility: All the control items can now be accessed by Tabs; Added several accelerator hotkeys: Ctrl+A for select all chapters, F2 for rename chapter, and Alt+B for step back, Alt+N for step next, etc.
• Always check the output folder and make sure there is enough disk spaces for result files.
• Other minor enhancements.

2.3.2 (2004-12-02)

• New feature: Added a normalization option which allows you to adjust the volume of audio files to a standard level.
• Always add Wave header for WAV files.

2.3.1 (2004-10-20)

• Now the program keeps all the user settings like Sample Rate, Bitrate, etc.
• Added a "Restart" button to make it easier to start another round of audio extracting. Clicking this button has the same effect as click "Back" button for three times and refresh the DVD-ROM.
• Other minor enhancements.

2.3.0 (2004-10-01)

• New feature: Now you can play/preview the selected chapters before you start to extract.
• Fixed a bug in previous versions which caused skips and pops on some audio streams.
• Updated OGG/Vorbis libraries to 1.1.0 version.

2.2.2 (2004-09-19)

• Added pause/resume function. Useful when you have to break the encoding process for a while to handle something else.
• Resized UI. Allow easier navigation when DVD title contains lots of chapters.
• Enhanced caching buffer. Fixed a hidden bug and now read discs more smoothly.

2.2.1 (2004-09-12)

• Fixed a bug in the resample function.

2.2.0 (2004-09-09)

• Enhanced stream decoding engine. Use less memory and provide better performance and compatibility.
• Added support to 24 bit Wave output (for those Hi-Fi 24/96 players).
• Write correct playback time into m3u playlist file.
• Fixed track number in ID3 tag.

2.1.0 (2004-08-21)

• New feature: Direct DTS audio decoding supported.
• Adjusted channel order for multiple channel Wave file output. Now use default Multi-channel Wave Channel Ordering: Left, Right, Center, LFE, Surround Left and Surround Right.
• Enhanced speed when resampling to different sample rate.
• Other minor fixes.

2.0.1 (2004-08-02)

• Fully support all LPCM formats: any 16, 20 or 24 bit, 48000 or 96000 Hz sample rate, 1 to 8 channels LPCM can be decoded.
• Multi-channel Wave output supported, with an option to save each channel to separate file.
• Multi-channel OGG Vorbis output now possible. Now you can save Dolby Digital 5.1 audio to 5.1 Surround OGG files.
• Update Lame library to latest 3.96.1 version.
• Other minor enhancements.

1.2.2 (2004-07-09)

• Fixed a bug in OGG/Vorbis format that caused the result file be several seconds shorter than original audio.
• New feature: DVD Audio Extractor now shows how much space will be needed for the output files.
• ID3 tags (artist, album) will not be put into output filenames due to user requests.

1.2.1 (2004-06-21)

• Added support to Average Bitrate (ABR) mode for MP3 encoding.
• Fixed a bug which will cause DVD authentication error when using multiple DVD-ROMs.

1.2.0 (2004-05-06)

• Computer Application Studio has moved to it's new website www.castudio.org. old pages on thunder.prohosting.com are no longer accessible.
• New feature: Win9x/Me systems now fully supported. The program will try to load and utilize ASPI manager (wnaspi32.dll) on Win9x/Me systems.
• The UI now displays well on Win98 and above.
• Update to Lame 3.96.

1.1.6 (2004-03-27)

• Removed original Drive Capabilities tests. Now provides better compatibility with external or virtual DVD/CD drive.
• Fixed a bug happened when converting from 20bit LPCM to 16bit wav.

1.1.5 (2004-03-07)

• New feature: Added reading from file folder mode due to user requests. This also added (limited) support to Win9x/Me systems where DVD-ROMs are not recognized by this software.

1.1.4 (2004-02-02)

• New feature: Allow changing of audio track/chapter names.
• Bug fix: The length of User Name in the register window is too short. Extended to 40 characters.
• Update to Lame 3.95.1.

1.1.3 (2004-01-11)

• Bug fix: "Can not read the selected audio stream." error due to DVD unlocking failure.

1.1.2 (2003-12-27)

• Added direct stream demux function for LPCM, MPEG, AC-3 and DTS audio streams.
• Improvement on decoding speed.

1.1.1 (2003-12-21)

• Added time elapsed and time remaining information during decoding.
• Bug fix: In some rare cases redundant silences get inserted when decoding multiple chapters to single output file.

1.1.0 (2003-12-18)

• Changed chapter selection method from VTS->PGC to Title->Chapter. The new method is more close to the way people watching DVD movies and thus easier to understand.
• Improved DVD reading speed.
• Update OGG/Vorbis libraries to latest 1.01 version.

1.0.1 (2003-11-22)

• First public release.