Why does my ARCAM say "over"?

I think Audiofankj has it right. I'm guessing that the CDs that are giving you trouble are multi-format types, possibly dual-disc. Your CD player is trying to read TOC on the disc and can't read it. Your player is smart enough to know that there is a disc inserted, but since it can't read the disc, it thinks you need to turn it over. My Resolution Audio Opus 21 won't read the one dual disc CD that I own (Snow Patrol).

Enjoy,

TIC

I have an older modified NAD cd player and when "over" illuminates on my player, it means that there are more than "15" tracks on that particular disc. I imagine yours is telling you the same thing. Double check the CD you're listening to next time it comes on to see how many tracks are on it.

Bacs68 - you hit the nail on the head. However, for the Arcam, it appears that 20 is the magic number. That is, if the disk has more than 20 tracks, the panel displays "over". Tks for the answer.