Better iTunes 4 and iPod Compatibility MPEG-4 files retain their type and creator codes until they are brought into iTunes. This allows the tag information to come in along with the MPEG-4 audio files. This fixes the problem where valid tag information was transferred into the file, but not recognized by iTunes. The files remain MPEG-4 files, not Apple's so-called "AAC" file format. The only known side effects are that with MPEG-4 files, sound effects like cross-fade and equalizer settings are ineffective. As well, MPEG-4 files cannot be synchronized with an iPod. Converting MPEG-4 files into AAC files is a simple and quick process. See item 2 below for more details.
Script Menu Items for iTunes 4 While MPEG-4 files play fine in iTunes, they cannot be synchronized with an iPod and special effects such as equalizer settings and cross-fade effects do not produce the desired audio effect. Converting an MPEG-4 file into an AAC file simply requires changing the file type and creator codes to "M4A " and "hook". No recompression is performed and the process takes just a second or two for a handful of files. With version 1.02, we now include two Script Menu items that appear in iTunes' menu bar to convert selected files to and from AAC format. Their use is as follows: make4iPod to convert song files created with AACelerator into AAC files capable of being synced with your iPod, select them in the main browser window of the iTunes music player an select the script "AACelerator - make4iPod" from the iTunes Script Menu. The script will only change files created with AACelerator or that have type and creator codes of "mpg4" and "TVOD". MP3 files, purchased music, and other types of audio media files will not be changed. However, the resulting AAC files, if transferred to another computer, will loose their tag information if added to that computer's iTunes application. So, we also included the next script. restoreMP4 if you wish to restore the original type and creator codes of MPEG-4 files for transfer to another computer, select the audio tracks in iTunes' main browser window and choose the script "AACelerator - restoreMP4" from the script menu. This will allow tag information embedded in the audio file to be properly recognized when re-importing into another computer's iTunes library. This script only affects files ending in ".mp4" and that have type and creator codes of "M4A " and "hook".
Saved Preferences AACelerator now saves the user's last selected encoding destination folder, last selected encoding bit rate, and streaming options as application preferences on a per-user basis. When the application is restarted, these settings are restored for your convenience.
