Strange Ritek Scanning

[mowgly10]

I recently purchased an NEC 3500 drive and some Ritek G05 Inkjet hub printable disks. Once I do the burn I always run the nero cd/dvd speed utility transfer rate and surface scan. Here's the strange part, if I run the tests within about an hour or burning the disk, it always fails toward the end in both the transfer rate test (the line starts going crazy up and down and finally get an unreadable error) and the surface scan, ALL the blocks in the last 1/8 of disk are red. But if I test ths same disk about three or more hours after burn, I get a perfectly linear transfer and all green blocks on the surface scan. Does this make any sense to anyone? I've burned hundreds of disks on my previous drives (pioneer A04 and Nec 1300) and always was able to do a successfull scan immediatelly. Does the higher speed burning of the newer drives create a need for a cooldown period for the disk before the dye gets stable again? I would really be interested in any other experiences or opinons.

PS I did burn the disks with the newest firmware and at rated speed of 8x

[nic2k4]

Reboot your PC before doing the scan.

[mowgly10]

That was one of the first things I've tried but same results.