[QUOTE=cybmole;2152036]i would expect a factory pressed DVD to last “forever” while stored inside its case, but a DVD that you burn yourself iuses different technology - written layer could deteriorate over time ( dunno how fast though).
as for scratches & fingermarks, that depends how careful you are - if you grew up with vinyl LPS you quickly learnt how important it was to be careful!
the 2 elements I consider when planning backups are:
1 how much would it cost to replace the original source DVD , and
- how long did I spend customising it. If e.g. you spent 2 hours per movie converting to IPOD format you really don’t want to have to go through all of that twice!
I now think of a 3rd point: how long would it take to replace the original e.g. If I can only buy it as an obscure import that’s gonna take 3 weeks to arrive, then I might invest in an extra backup.[/QUOTE]
I have a backup dvd via dvdfab in sleeves for use and origional dvd’s stored away.I usually use single layer and compress when needed but, If theres a dual layer I got to have all the stuff, I do copy to dual layer.