Toast Titanium & Apple SuperDrive: cannot create DVDRs

Version 5.0 of Toast Titanium cannot burn data to a DVD in the DVDR format. Roxio's Toast FAQ states that Toast supports Apple's SuperDrive. But until version 5.01 is released, data support is limited to writing CDs. Attempting to burn a DVDR will result in a "..can't determine free space on disk" message. Evidently Toast is able to write data to an 'older' Pioneer DVD/CD mechanism, however, that mechanism is not used in SuperDrives. Mike White writes: "A tech in Pioneer support informed me that I must be using an old build of the product as the error was fixed in the new version of Toast 5. Apparently he had a prerelease version, because Roxio told me that DVDR support would not appear until 5.01 is released."