> "Some" is not acceptable for preservation. I meant the few early 1980s audio CDs I own. All still work fine. Pressed CDs last a lot longer than burned CDs. I

> "Some" is not acceptable for preservation. I meant the few early 1980s audio CDs I own. All still work fine. Pressed CDs last a lot longer than burned CDs. I only ever had problems with CD I burned myself (especially a CD production series in the early 2000s).