Question : Problem: What are the different types of Tapes. Like LTO2 or LTO3.

Hi,

What are the different types of Tapes. Like LTO2 or LTO3.
What are the differences between these.

Is this device specific. Or any device can take any type of tape.
Regards
Sharath

Answer : Problem: What are the different types of Tapes. Like LTO2 or LTO3.

Just like you can play an audio tape in a video tape player, not all tapes work in all systems.  There are several formats - the most popular are probably DDS, DLT/SDLT, LTO, and AIT.  There are others as well, but these are the most popular.  Each of these tape types are physically different.  The numbers generally define the "Version" of the tape - higher versions hold more data.  How much depends on the tape technology.  Generally, between 50% and 100% more than the last version.  In MOST cases, tapes are backward compatible at least for recovery.  Meaning a drive that supports LTO3 will be able to recover data recorded to an LTO2 drive.

In general, if you have questions about tape types/technology, I would suggest you review their wikipedia entries - for example:
LTO - http://en.wikipedia.org/wiki/Linear_Tape-Open
DDS - http://en.wikipedia.org/wiki/Digital_Data_Storage
DLT - http://en.wikipedia.org/wiki/Digital_Linear_Tape
AIT - http://en.wikipedia.org/wiki/Advanced_Intelligent_Tape