EXPLORER.EXE APPLICATION ERROR

Hello,

This is a serious problem.......pls help me...

Whenever i access my files from the DVD, an error such as this appears..

"EXPLORER.EXE APPLICATION ERROR" and then 2-3 lines like..
could not find memory location (00000.....) something and then there are two options "OK to exit and CANCEL to debug"..It also referred me to something like drwtsn.....press OK to exit

but when again i try to access the folder then there is no problem..and it opens.and again happens for the folders inside the main folder..

This problem occurs for every single folder on the DVD/CD..

My DVD drive is working perfectly...pls give me a solution