Or to save going to the link....
4x DVD-R/+R, 2x DVD-RW, 2.4x DVD+RW, 24x CD-R, 10x CD-RW
The ridiculous result of the standards war - a multi-standard drive.
By that idea, we should have had Video recorders that could do both VHS and Betamax.
If you had to back ONE format, out of the +/- ... which way would you go?