RSJ has released an update to their CD/DVD writer software for OS/2. In case people weren't aware, starting with 5.0 RSJ now supports writing to DVD media.
URL: http://www.rsj.de/stage/en/cdwriter/cd_os2.asp
Download: http://www.rsj.de/stage/en/download/downos2.asp
Changes RSJ CD Writer for OS/2
5.52
* support for DVD+R DL (dual layer) media
* DAO: automatically using RAW-3 if CUESHEET doesn't work
From the order page it appears this requires an upgrade fee even from the 5.05 version https://www.rsj.de/stage/en/order/orderos2.asp
"Upgrade RSJ CD-Writer for OS/2 (Versions 2.50-5.05) to RSJ CD-Writer for OS/2 5.51
Keyfile of previous version is required for installation
Internet Only Euro 33.62 approx.US$41.55"
Source: OS2VOICE