I have just put version 0.3.0 of BwgBurn up on source forge (see http://bwgburn.sourceforge.net). This software is written to run under Windows XP running dotnet 2.0. This software package is going to be a full featured CD/DVD burning package. The current release supports CD/R, CD/RW, and DVD+RW. You can create audio disks from WAV/PCM input files. You can create data disks targeted at CD/R, CD/RW or DVD+RW media.
The latest release includes audio format conversion so any wave/PCM file can be used as input. This release also adds the capacility to read the "real" media manufacturer for DVD+RW media. Finally many bugs are fixed in the GUI.
Please take a look and provide feedback via the forums at sourceforge.
This really is open source software so the source is available at sourceforge as well.