Free/Shareware AC3 encoders?

[DeadLily]

Does anyone know of any freeware or shareware Mac programs that convert sound files to AC3 files, besides Ffmpegx? I know about A-Pack, but you have to buy Studio Pro to get it, and Studio Pro doesn't work on a G3, which is all I have right now.

[ZeroSix]

whats wrong with just using ffmpegX? It does a great job.

[sdm]

ffmpegX doesn't work for me. It was a month or more since I last tried.
I read the instructions, and I believe it said to use the ffmpeg engine to encode the ac3, and have the video set on passthrough. The resulting ac3 is not accepted by dvdsp.
Just for kicks I through the ac3 onto mpegInfo and it appears it is really an mp2 with an AC3 extension.
I really would like this to work. Any thoughts?

[AntnyMD]

Well, MPEG audio is accepted into DVDSP version 1, which works on G3 machines ... Somewhere along the line you were able to try DVDSP2 so maybe you have version 1 lying around going unused? If so, just use A.Pack and be done with it. A.Pack is essentially unchanged from version 1 to version 2.

[DeadLily]

Well, MPEG audio is accepted into DVDSP version 1, which works on G3 machines ... .

Are you sure DVDSP1 works on G3s? Apple's docs say it requires a minimum of G4.

[AntnyMD]

I'm almost sure I used to use it on my G3 iMac before I sold it, but it was late when I posted that so I can't be sure now. I don't have access to a G3 anymore.