The pictures above are from the single disk (official!) version of Xenon 2, comlete with intro; track 79.0 .
They had to use a very dense disk to pull that off, and naturally that greatly decreased the readability of the disk - how precise your writing is matters when the drive speed and disk rotation speed varies and peak shifts appear.
Put simply, the narrower the written band is, the higher the chance of reading it on the target system without errors and retries.
Additionally, this disk sports the nastiest varied density protections ever on Amiga: Speedlock on track 0.1; if the written image is not 99.99% correct it will never work due to the timing checks used on very small fragments of disk data to make copying next to impossible.
Last edited by IFW; 08 July 2011 at 14:31.