Hi guys. I have read some threads about bad bonding (especially of TY DVD+/-R) and am wondering if this really is a cause for concern?
First of all, I suspect the term bonding applies to how 2 pieces of a disc are glued together? Today I forcefully â€œunboundâ€ a couple of TY T02 discs with a sharp knife and I noticed that this didnâ€™t cause any noticable(!) damage to the dye (or whatever the part that you can write to is called). After that I partially pulled apart a T02 with my fingernails and ran it through a CD-DVD Speed PIE/PIF test and checked the CRC sums of the files, no problem whatsoever.
When pulling such a DVD+R disc apart, I notice there is a silver layer on top of the dye, I suppose this is the reflective layer? Suppose at one point in time one of my T02 discsâ€™ bonding fails and I get 2 halves, 1 with intact dye and reflective layer…could I still save the data? Perhaps use some superglue temporarily? What would happen if I put the bottom half only in a drive?
When the reflective layer is exposed to the air, does this cause more degradation? In any case, Iâ€™m going to keep this partially pulled apart disc and rescan it in a couple of years.
Is there a way to see or hear that a disc has bad bonding, prior to burning?
BTW, I rescanned a dozen of T02s (FUJI and Plextor) that I burned and scanned 2 years ago with no noticeable increase in PIE/PIF. That reassures me a bit that my data is relatively safe (I only use T02s and TY CD-Rs).