Good point. Yeah, PI/PIF scans are not the end of all things. Other things, that we can’t test for, are important (reflectivity for example, that seems to be excellent with Ritek discs - at least with G04s).
But that’s one of the things I dislike with my own G04s actually. In sounds paradoxal, I know, but let me explain.
These discs seem to be readable until the error levels are so high that POFs start to occur, making the discs totally unreadable. They don’t warn you with skips & freezes (video discs), or long re-reads (data discs). Then, suddenly and without warning, they fail, totally, irremediably, before you have the time to re-write to other discs… :a
So without PIE/PIF scanning, you have no clue as when the disc will fail. Among the +/- 400 G04s I’ve burned, about 60-70 suddenly failed like this, some after 8 months, some after a year, some after three weeks (among discs buyed after september 2004 :Z - those I bought before seem very stable). G05s seem to behave similarly but I haven’t burnt enough (about 100) to have a big picture. And most gave mediocre scans right from the start anyway so I just trashed them. - only Traxdata and Maxell G05 discs are still in my collection, other G05s all finished in the trash (after having been copied to MCC 02RG20 or TYG02).
After hours and hours of scanning my collection, I am perfectly sure that almost all G04s sold since mid-2004 show faster degradation, except for batches I have with serials starting with “J6” and “H1”, that seem rather stable. The worst batches here have serials starting with H4, K3 and D2. All my G04s that failed in less than 2 months were H4 or K3… and were buyed in 2005. Probably the last batches manufactured. I’ve also encountered G04s without serial number, with a frosted hub similar to TY discs. I don’t know about these, they were bought by a friend I’ve lost contact with.
Another thing that is funny is that all batches buyed in 2005 have a lighter dye color, actually exactly the same color as G05 discs. Think about it. It makes sense… out of specs G05s sold as G04… wouldn’t surprise me.
I’m off, I need sleep.