My good friend works in our data receiving dept where they work with tape drives all the time.. This was his response.. It probably wont help much..
urs3: Is any one tell me that LTO3 tape Cartridge is compatible with LTO2 Tape Drive
ilam: my guess would be no
urs3: Someone asked on Toms Forums, but no one has posted a response.. i wasnt sure if you knew anything about those formats..
ilam: well, it's just like anything else...
ilam: the newer **** won't work in the older drives
ilam: and sometimes.... just sometimes.... it's retro-compatible