boot disks

I recently made a boot disk using Nero , but when i put it in to load all I get is the music screen with a disk spinning and it says track1 in the corner and 6 seconds in the other. Now I've bought a boot disk and the same thing is happening
Am I doing something wrong or is my Dreamcast not compatible with these disks
I'd be grateful if someone would let me know

[bigboybob]

You would be best to use Discjugglar version as it is the most reliable, but your problem may be that your dreamcast has been recently bought and has a built in protection within itself, if not check your settings and make sure it is not set on audio mode!