Happy to know it works well! Maybe a newer laserdisc will work, as almost all discs with PCM have a TOC (AFAIK).

Bitperfect: just record a DTS laserdisc (two minutes will suffice), copy the .wav file from the CD to a PC, and play the file with a software player; if it plays flawlessy, it's bit-perfect, if not, maybe the file should be converted somehow (sometimes it's useful to change extension to .dts)... I did it in the past, and it worked, but honestly I can't remember what I did exactly - you know, I'm a grumpy old man! (-^,)