Can't import from Pro-Burn CD+G - Can import with 3.314

[DanL18]

We recently purchased a custom CD+G from Karaoke.com that also has Pro-Burn & easy karaoke on the label. I can view files on the CD with Windows Explorer (but they only show as 1K) and can play the music only with Windows Media Player. When I try to import the songs with Microstudio ver 3.000 I get the error "The CD/DVD drive is not ready. Please insert disc and try again. It is also possible that your CD/DVD drive requires a firmware upgrade." I have not had this problem with other CD+G discs. I've attempted these steps so far:

1. Plextor PX-716UF 1.08 firmware upgraded to PX-716A 1.10
2. Set HW Error Correct (HWEC) to Yes

Neither of these steps fixed the problem.

Also tried to import songs with Hoster Lite ver 3.310, but get "CD/DVD drive not ready. Please insert a disc and try again."

Read Ron Vermillion's 10/10/2006 post on Hoster "HELP NEEDED cda files ??" where he had similar problem with these Pro-Burn CD+G (with black back on the CD) - he was able to work around using Microstudio, but I'm not able to get that to work for me so far. Any suggestions?