I purchased a few cd’s of brand “princo” about 4 yrs ago and wrote a lot of data like softwares, games, cartoon movies, pdf files etc. After burning the data I put all the cds’ in the cupbord. Now I took out all the cd’s to check my data but the cd’s are not getting recognised in my computer. All the cd’s are scatchless and still looks brand new. I have tried those cd’s in different cd/dvd drives too but still the data wont show… anyone please help me get my data back, and why is the cd’s not getting recognised??