Mitsui DVDRW

[strongbad]

I bought some Mitsui +RW's. Wondering if they're any good?

Unique Disc Identifier: DVD+RW:OPTODISC-OP4-001
Manufacturer Name: Optodisc Technology Corp.
Manufacturer ID: OPTODISC
Media Type ID: OP4

[bevills1]

I've used Optodisc 4X -R before and found them to be equal to Ritek G04 which burn at 12X on NEC 3520A, but I don't recall media code or other specifics. However, I've had problems with some Ritek 4X RWs and some Samsung 10X RWs which format fine and are okay for a few days to a few weeks after which I get write errors, and Windows indicates no free disc space even when less than 100 MB on disc; reformatting with Nero 6 fixes the problem but only for a few days to a few weeks after which the problem recurs. Have you had this problem with CDRWs, and do you know a fix or other media brand that's more reliable?