Not sure if this is the right place for this thread, but.... I've recently been given an old jukebox made by AEI - the model number appears to be "RM3 Rediffusion". It came with 2 CDs housed in square plastic cartridges, each CD contains 8 hours of music, so i assume they are in some kind on compressed mp3 format. I've taken the CDs out of their cartridges and tried them in my computer's CD/DVD drive, but it doesn't even recognise a disk has been put in. Just wondering if anyone has ever seen anything like this before, and might know what format the disks are in, and whether its possible with the appropreate hardware/software to burn disks in the correct format for this jukebox?