I have both images ready to send, If they are the right extension (.imz)? I read and saved the disks with winimage.
How should I post the images here? I tried the file attachment in the forum but it was telling me extension not allowed..
I also read this when looking into the way mpcs read disks
OS's and MPC use the OEM label in the boot sector to decide which other fields in the BPB (the BIOS
Parameter Block) at the start of the boot sector to trust on and which other values to leave alone.
When you insert a disk into a Windows 95+ machine the OEM label is overwritten with a special "IHC" checksum every time you access a floppy (even a simple "DIR a:" with a non-write-protected media
will be sufficient). No other changes are made to the media, however. This OEM label is 8 bytes long and is located starting at byte index 3 on the drive. What does this have to do with the MPC2000? Well, the MPC2000 specifically looks for MPC2000 " To determine if it is an MPC Disk. This also tells the MPC to look in another section to determine the number and locations of the additional partitions on that drive.
Without the "MPC2000 " label the MPC assumes it is just another single partition drive, when in fact, all of the data is still there and intact. There is a fix: Image the drive using a something that accesses the drive below the OS level (like disk2file) and change the OEM label to "MPC2000 " and write the image back to the disk.
It made me think, maybe when a disk is formatted to an 'mpc 2000' disk, maybe thats just simply wiping whatever data if any was on before and writing the label, also makes sense as I have saved onto non mpc formatted disks by mistake in the past without realising as the mpc still goes ahead and saves, moves through the percentage etc etc but when trying to load that data at another time it wasnt there.. or maybe it was and it was just a case of the mpc not knowing where to look to be able to access it.
So maybe in that respect an 'mpc 2000' formatted disk is still esentially an ms dos formatted disk? Am I on the right track or am I lost? lol