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the one I found had a corrupt cuesheet, the first track was marked as Audio when it wasn't.

it had
FILE "The_Apprentice.img" BINARY
TRACK 1 AUDIO
INDEX 1 15:22:00
TRACK 2 AUDIO
INDEX 1 19:44:00
etc.

instead of

FILE "The_Apprentice.img" BINARY
TRACK 1 MODE2/2352
INDEX 1 00:00:00
TRACK 2 AUDIO
INDEX 1 15:22:00
TRACK 3 AUDIO
INDEX 1 19:44:00

I can't tell you if the 2nd is right for sure, but the initial cuesheet definitely doesn't work, so if you have the same image and cuesheet...

It's the only game I have with CDDA tho. I think A Wu posted another one a few pages back, Alien something?

That is technically possible (the buttons can be read by a CD-i application), but I'd rate it "unlikely".

Yep, it says "This program works only on European CD-i players. Press a button on the remote to leave the program."

This title wasn't published by Philips who would never have allowed this cheap cop-out, but since all the text was in dutch anyway we didn't feel the need to bother. Yes, this was developed at the company I used to work for, I might have even written part of the code, can't remember exactly.

Most games from SPC Vision / The Vision Factory have CDDA tracks, but only The Apprentice and Alien Gate play them from the game (only if you use the "NO SFX" setting, though for different reasons in each game). Rhese tracks were mostly intended for people to play on their audio players, which was the primary reason for the CD-i Ready format.

Don't know if either cue sheet for The Apprentice is technically right; CD-i Ready hides the CD-i data in the "pregap" of the first audio track because most audio players skip over that automatically. The first cue sheet is thus technically right, I think.

Edit: Both games always play their out-game music (e.g. intros, highscore, credits) as CDDA, regardless of the SFX setting

Also, be aware that there are a LOT of bad images for CD-i Ready discs out there. If CD-i Emulator plays them, they're ok, otherwise I'd say "strongly suspect"

Some of them are okay in the CD-i track but bad in the audio part...

Just added CDDA support. Enjoy.

Just backed out CDDA support. Don't enjoy. It was causing The Apprentice to play nice CDDA on its game intro screen, but at the same time it also didn't progress past the first frame of the game intro screen.

Correct, it's in Dutch. (I don't speak it, but it's similar to German).

The text means:

"This program solely runs on european CD-i players. Please press a button on the remote control to leave the program."

Keep in mind that enabling CDDA breaks some Konami PSX based games too, IIRC Beat The Champ and the other one on that hardware. If you turn off 'Music' in test mode they play, if you enable music they just report never ending disc / load errors. It could be something broken somewhere else in MAMEs CD code when it comes to handling CDDA and it also requires other access to the disc?

I wonder if regular CDDA playback still works in the PCE music player then.