Welcome to Atapi V58++ for the A1200/A4000 ! With this Device, you could connect any AT-IDE CDRom to the normal internal A1200/A4000-Controller. No special Hardware needed ! Some more optimizations made and now it should work on BOTH A1200 and A4000 ! Codesize now MAX 4848 Bytes ! I've include this Versions: V58.3: 68020++ ONLY. Longword instead of Wordtransfers from & TO [!] CD-Rom. Check for A1000/A4000 Bonus to detect A1200/A4000. V58.4: Made global Delay for CD-Axx [Could cause problems ?] V58.5: No Delaying anymore .. [Maybe to fast ??] V58.6: Optimized Transferloop for faaaaster Reading and more free Processortime. Loops/Entries on Quadwords. Please tell me which versions run correctly, to ensure that i can make it even better !! Please test the Transferspeed of the Chinon 4xCD-Rom, on Version 57++ it was 630Kb/ca. 60% free Processortime. And how much is it now ? mADE BY Lyn×x/ZZC.