< I would like to test the Vertex 185 under Spinrite (MS-DOS) and expand t < bad track table, if Spinrite discovers more problems. You could but,... < Will the bad track information carry over under CP/M, and will its forma < utility see the MS-DOS info? Otherwise, should we just make a list and e < it? Depending on the controller used likely no for the Bad block info and NO for the format. < Is there a low-level format utility in CP/M? Is it necessary, as under < MS-DOS? Maybe, it's generally machine/controller specific. Necessary yes. General purpose no. REason for that is like floppy controllers hard disk controler of the era varied from system to system. < What is the QX-10 controller card going to think of a different hard dri < Will it try to run the new drive as a 10 MB? it depends what the controller passes back to the bios and if the bios can even be reconfigured. FYI: CP/M2 disks over 8mb must be partitioned to multiple 8mb (or less) logical drives. The file system can only address 65536 128byte logical sectors and up to 16 logical drives. Allison