Dolby Digital AC-3 decoding for Windows ACM. Install this and you can convert/decompress AC3 audio directly to WAV / MP3 using VirtualDub. This also works with AviSynth, TMPGEnc, allowing you to use AC3 encoded AVI files, not normally recognised. Wha't new:

- stereo downmix of surround channels was b0rked.

Download: AC-3 ACM Decompressor 0.8