Not a chance with CD-RW media, the reflective qualities are completely different.
There are some idiots here that insist that CD-R media doesn't meet certain standards, although they conveniently forget that the company their friend works for wouldn't license it for sale if it didn't.
Quality media (Verbatim for instance), burn at no more than 10x, keep the length to 74 minutes or less, and it will work.
There was a repair guide posted for "lasers that have been damaged by the use of CD-R media", although (unsurprisingly) it's not the laser that gets replaced.
http://www.omegaowners.com/forum/YaBB.pl?num=1241901022
Just out of curiosity, why would you want to use CD-RW media anyway?
I assume you mean me.
When you grow up enough to understand such things I would explain why CDRs do not meet Redbook.
To others who are able to take on board information and advice, players designed to play Redbook CDs (normal, plain, original audio CDs) only, such as those factory fitted to
all Omegas, struggle to read CDRs (which physically cannot meet the Redbook standard at a physical level). This ultimately shortens the life of the laser component (particularly it would appear the focussing section).
Philips lasers do seem to be particularly prone - hence the high laser failure rate we see on CDC3 (fitted to Astras/Vectras, but not normally Omegas), NCDC2013/NCDC2015, CDR500, CCR2006, CDR2005 and on CARiN Navigation units (spits disk out randomly - although this is not an audio CD, its an earlier laser design that cannot properly focus on CDRs).
CDC2 units, found in many prefacelifts, seem more robust, unsure if Philips made the laser units for these.
Unfortunately, as Philips Automotive sold out to VDO, who sold out to Siemens, who sold out to Continental, replacement lasers are usually not available, so the unit is unrepairable.
This issue is not specific to Omegas, or even Vauxhall. Rover, for example, have similar issues with their CD Players and changers (I know, I've got one).
I have a Kenwood 10 disk changer, circa 1992, that has had mixtures of originals and CDRs (after I got my first cd writer in the mid 90s), and that still plays well. I have had 2 CD Changers in the Rover we currently have, and now need another, as its very hit and miss on CDRs now (plays originals currently, but experience shows this will soon stop as well

)