I had an Arcam DV79 that worked great for both 5.1 movies with a Denon AVR, and later as a dedicated 2-channel CD player with Linn separates. Switching modes to output 5.1 wasn't a big deal with the Arcam (but I will acknowledge that setting up anything through the Denon could be tricky).
Unless I'm misinterpreting your post, pairing a DV79 or one of Arcam's FMJ DVD players should be a natural with the Arcam 600.
Unless I'm misinterpreting your post, pairing a DV79 or one of Arcam's FMJ DVD players should be a natural with the Arcam 600.