Hello my turn now :) > Si Wrote
> I guess as long as sector 1 of track 4 is a regular 512 bytes in size, and > contains the BOOT signature and some bootable code, it doesn't matter what > the code is or what the rest of the disk looks like. SimCoupe only needs to > be concerned whether the signature is present to know that it's worth > pressing F9 to run the code... Trk4:Sec1 , can be anysize you wish ( think one of mine was 1024 , can't remeber which ) , But i also agree with Aley , in that a Rom Alteration should be made ( if this is decided a want thing by most ) , and should be added to the "No Dos" call to load a pre-stored image of rom/ram or just have a Image file with a dos on and boot that , that way the user could chose what dos they wanted just my say , and thank godness theres no more silly maths in here , we all know that x/0 = crash , and in a computer world thats bad , Chris