Backitup Incremental on DVD-R

Is there any way to do incremental backups using Backitup on a DVD-R as opposed to an RW? I have tried and tried but Backitup always fails to write an incremental to a DVD-R saying that it needs a DVD-RW. I use Kiwi’s Syslog Daemon application and want to have the daily dated log backed up nightly.

NM. I found my problem and it was due to a hardware issue.