QUOTE
Originally posted by Sawg
fastenc was a command line utility.
ACM was a Windows Codec, used in MP3 Producer Pro.
I *believe* ACM/Producer Pro is higher quality.
Umm, fastenc is not just used in the certain command line utility.
FhG Fastenc is used e.g. with Sound Forge when using the "fastest" -setting, or with MusicMatch Jukebox when using the "normal" -setting.
In certain fastenc implementations there's the infamous
stereo collapsing bug.
There are several FhG codec generations:
*l3enc
*ACM/Producer Pro/Radium hack
*MP3enc
*Alternative
*Fastenc
If you download the latest MusicMatch Jukebox or Sound Forge and use slow/hq settings, the codec used is Alternative.
Alternative codec is also based on MP3Enc 3.1.1.
What you should use is very subjective. You may get different recommendations depending on a person. I'd probably use alternative hq for lower bitrate encodings.
Check out also ff123's site:
http://www.ff123.net/