I have got Liteon SHW-1635S DVDRW.
Initially when I got it everything was all well but then it stopped recognizing any media.
I got it repaired by the service center, probably they gave me a refurbished one.
Now it does not read any R or RW media that has been burnt on a different machine (at various speeds). It does recognize pressed DVD’s. Have tried to re flash to latest ROM version.
Any suggestions?? or is it back to the service center???