I'm still trying to figure out what you are saying. 
that the drive is able to read DVD-R disc
What discs are these?
i just bought 2 imitaion and sony dvd-r cd from
popular and all 4 can't be detected (once placed in
drive..will only read CD drive -> Free space
and Total space = 0 bytes)
Exactly what you bought?
DVD or CD? Or both?
And read the CD drive means? I take it as it has no problems with
reading CDs?
Also, DVD drive brand and model please.