Very interesting.

Ripping AC3 or DTS off Laserdisc is something I've always wanted to try but never got around to attempting. From what I've heard, the problems stem from the tendency of some sound cards to resample the SPDIF input while recording, which of course destroys any encoded data.

However, some members (e.g. Karyudo, Darth Editous and Adywan) have successfully accomplished this.

Please keep us updated with your progress, it will be a useful for others who want to attempt this in the future.