SONY DVD+RW DW-Q58A cant even recognize win vista cd but it will see a blank dvd

Well a quick check here says it should manage 4 x DVD write speeds:-

http://reviews.cnet.com/dvd-drives/sony-dru-510a/4507-3212_7-21226932.html

The only thing I can think of is that lens may have some dust on it, try a CD lens cleaning disk or a blast of air from an aerosol spray can.

After this, I'm afraid its down a replacement.

Try this firmware update http://www.opendrivers.com/driver/235870/sony-dw-q28a-dvd-rw-firmware-kyr6-free-download.html

It happens if the lens becomes weak. I advice you get an external DVD-RW.
I hope you find this solution is helpful.

It is only compatable for CD RW.
Not DVD RW.

Find, download, and install the latest "firmware" for the Sony DVD-writer -- if the unit does not recognize the special "tags" written onto the 1st record of each "blank" dual-layer disk, you need the latest firmware.

clean the lens once. if under warranty, change it.

Have you got a CD/DVD-RW drive?

Drive out of alignment or dirty...accordianman

the dvd writer needs to be replaced,the laser is faulty or miisaligned, the cost of a repair is no longer viable because a new one would cost about $60 (£32.00)

Sorry no solution, but why burn with mediaplayer/realplayer? you get better results with nero, or other burn dedicated software. Hope you work it out