Help! hardware meltdown!

[808cat]

Have read about all the ZIP drive issues but the other night i went to reverse a sample and the disk ejected itself, displayed the usual drive too busy message but then froze, and since then everytime i turn the machine on and insert the disk it just ejects it, i hav to re insert like 4 or 5 times until it accepts it. It also ejects and freezes when i save, when i copy samples and on other occasions. is this the disk itself wearing out or something wrogn with the SP??? helppp!!!

Might be worth noting the drive has been upgraded to 250mb but im using 100mb disks as thats all i have atm.