I’ve just reburned 100% of my 4x -R GSC001 as they had all suffered from degradation problems even though they were stored properly once burnt. Oldest goes back to around April 2004
Without the LiteOn burner in my sig I wouldn’t have been able to recover some of them as it read discs that my other drives failed too. I’m not impressed because 6 months ago I had occasion to have to restore files from them when a Raid 5 array went belly up and they were all readable then and although I didn’t do any scans at the time I didn’t notice any slow downs during reading and copying files to HDD.
Another recent HDD failure had me looking through all my archived discs again and then I noticed some would not read back, slowdowns etc. So I scanned all of my archived discs and noticed severe degradation on all GSC001.
Luckily what I couldn’t read from degraded discs I was able to recover from HDD with recovery software so I haven’t lost anything except considerable time in scanning/testing and reburning about 1TB of data.
The 8x -R GSC003 are holding up much better for the same time period, but they too are suffering from degradation problems.
Conclusion: The GSC discs are one of the better cheap discs but they do have a limited lifespan. I wouldn’t trust any older than 2 years now. I used to have a lot of respect for these discs, hence why I used so many. They burn really well but fall over in time
Buy the Verbatims in preference even if the cost is a lot more. I’m not saying don’t buy Gigastorage discs but only do so if they’re very cheap and used for short term and unimportant use.