Each and every disc I insert to Copystars 7 disc slave unit runs about 5% to 14% then stops, with WARNING, BAD MASTER DISC read out. My CD discs are good and work elsewhere. What can I do?

The laser unit is most likely faulty and requires replacement. There are usually separate laser diodes for the CD & DVD reading, so the CD might work perfectly while the DVD won't.

Run a mini mono plug out control of the 2nd slave to the 1st slave in control and the audio cables likewise from out to in. Run another mini mono from the out control of the 1st slave to the in control on the master and the audio out from the 1st slave to the audio inputs on the master. Set the 1/2/3 switches on different on each unit and you should be in business.

you may have a bad ROM. If you have a multiple target unit, switch the source from the ROM to one of writers and try copying that way, if it copies then it confirms that the ROM is defective.
If you have a Single target unit, check your master disc under disc info, depending on which controller you have it should be under utility or disc info. Once in disc info it should tell you the size of your master disc, for DVD-R it should be under 4488MB, for DVD+R it should be under 4482MB. Then double check the master in the PC just to confirm.

You can't add a title to a disc from a player (such as this). You can only add a title on a disc writer before finishing the disc. (The only exception is RW (rewritable) disc which can be unfinished.) If a title (disc, chapter or track) is on the disc you can display it. Press Title on the remote. If you want to read all of the information on any disc, insert the disc and press Load on the player (when in Stop mode) or press the TV/DiscExplorer/DVD button to set the unit in Disc Explorer mode. It takes about 30 seconds to load the data. Press Stop to cancel the data search. Then use the folder buttons (ALL,DVD,CD,A,B,C,D) on the remote or the player to read the various items. Press Return to leave the folders. If you enter the Disc Explorer while playing a disc, the playback will stop and you will have to press Play to restart (Resume is not an available option).

Once loaded the player will store the data even after you remove the disc. It will clear when a new disc is inserted or you press Load.

The manual for this unit is available at: http://esupport.sony.com/US/perl/model-documents.pl?mdl=DVPCX850D .

I hope this helps.

Cindy Wells

get the lens replaced.

I assume it means just what it says. The Disc you are trying to copy is faulty?
Clarify what you are trying to copy. If it is copy protected, A duplicator wont copy it. Or the disc was made in a format incompatible with the master drive you are using. Ive had drives read some discs and another drive that cant read the same disc. Some brands of discs work better on certain drives. Try to use top quality reccomended discs such as Verbatim.

Char S.

check for the master and slave jumpers

NAV unit uses a DVD disc. If its a copy, it may or may not work. I suggest you remove the NAV disc, unplug the NAV unit from power for 4-5 minutes, reconnect the NAV and try inserting the disc again to see if it reads. If it still does not read, another NAV disc needs to be inserted to verify its not a "bad" NAV DVD disc issue. If it still cannot read the second disc, the NAV unit is bad. The handbook feature needs the disc inserted in the slot 1 of the CD changer unit.

Try running a cleaner disc in the unit if that doesnt work try the following.

Starting at my computer... Right click on my computer icon.

Go to properties.

Then Hardware tab then go device manager. Right click on cdrom in device list. Select uninstall then reboot the computer. If this doesn't help replacing the unit will be necessary.

what i would do is install one drive as the master on ide 2, and the other as the slave on ide 1 and what OS are you using?