I am working on a quickformat routine for my OS, and it works (bootsector, FAT1&2, first rootdir entry). I check the success with an own dir and with hex editor neo (direct access to a: with no file possible). But with some disks there you cannot read anything due to the error message: no id address mark
How can I overcome this message? At which bytes is a successful media test and a readable disk signed?
The usual sign for full format in the data range (0x4200 ff.) is 0xF6.
links:
http://www.microsofttranslator.com/BV.a ... en-us?fr=1
http://technet.microsoft.com/en-us/libr ... 10%29.aspx
There I do not find this info.