Disk Utility Wrecks my DVD-RWs

[nylock10]

I burned a bunch of files do a 4.7GB DVD-RW and later went into Disk Utility to erase it. I selected the DVD-RW (not the volume, the actually DVD) in Disk Utility and pressed Erase.

Mac OS X says its blank, but it has Zero KB of free space! How can I fix this? It did this to ALL of my DVD-RWs

 

[Objectivist-C]

Does it give you the option to reformat?

 

[nylock10]

I tried a full erase (no Quick Erase), it said 4.4GB but when I try to burn it says "You Need a Blank CD"....

WT*???

Now all my DVD-RWs either say 0 Bytes or they say 4.4GB but are unburnable.