Question about newer PS2s and DVD+R/+RW compatibility

[passat81]

I noticed that the newer PS2s are compatible with the DVD +R/+RW format.

I have a DVD +R/+RW burner, but no DVD -R/-RW burner.

My question is, are the PS2s compatible with the +R/+RW format able to play games that are backed up on a +R/+RW, or do the games still have to be in the -R/-RW format?

Thanks,
Derek