Music Creator 4

I'm not quite following you.
Can you give us an end-to-end description of your signal path?
I'm not familiar with that mixer. Does it function as a sound card through the USB connection?

I'm trying to get a picture of how you have your hardware physically connected to each other. You mentioned line in and USB, so I am trying to figure out how the signal is traveling from your mixer, to the computer, and back out.
Once we know how you have everything hooked up, we will have a better idea of how to set your software.

OK,
I've just downloaded the manual for that. Interesting setup. There is no mention of installing drivers, so I have to make some assumptions here.
Don't start MC4 yet. Plug in the USB connection. Has Windows found the new device and given you the message that is ready to use?
Since this device has no specific drivers, it will be using generic USB audio drivers.
btw, what version of Windows are you using?
Open your Windows Volume Control. Do you see the USB listed as an Input(in the Recording control) or Output(in Playback)?
Now start MC4. Click Options>Audio>Drivers. You will probably see something like USB Audio Device, with possible variations(L,R,Stereo) in both Input and Output Drivers. You should also see your sound card listed. For now, put checkmarks in all the boxes. This makes everything available for the program to use. Click OK.
Let me know if this is making sense so far. This is a total SWAG, and I can't see what you see. Screen shots would be a plus if you can do that.
If we are good so far, we can tryto move forward.

Windows may have done the new hardware thing when you first plugged it in, so that in itself may not be a problem.
Go ahead and start MC4. What do you see in Options>Audio>Drivers?

The default Driver Mode for MC4 is WDM, which may not be compatible with one or more of your devices. This might be the hitch.
Go to Options>Audio>Advanced and change the Driver Mode from WDM to MME. This does require a restart, so don't make the I/O selections yet.
Close and restart the program. It will run Wave Profiler. This identifies audio devices for the program, so let it run.
After it is finished, go back to Options>Audio>Drivers, and make your I/O selections. Does it let you keep them?

Hi, coach,
try this:

Thank you for contacting Cakewalk Technical Support. Please try the
attached reset utility. If that alone fails, please go to your Windows
Start Menu and click "Run". At the prompt,
type or paste the following:

%APPDATA%/CAKEWALK

This will open a folder in Windows Explorer. Find the folder named
"Music Creator 4". Right-click on it and choose "rename". Change
the folder's name to the following:

"Music Creator 4 backup"

Launch Music Creator 4 again and allow it to recopy the application
data.

Before you launch MC4. Please download this driver mode utility.
http://www.cakewalk.com/support/sonar/drivermode.zip You can use it to
launch SONAR in a different driver mode such as MME.

yes, the steps I provided there are so you can make the change to MME driver mode and it should stick. once you do that, see if you can play something.

fantastic! make sure and post some stuff for us to listen to!

I have never used the m/c 4 burner, I've always exported and burned through a different program, but, if the first song is coming out good, then there really isn't anything the you might be doing wrong, or so it seems. I know when I use the external program, the burn speed can make a difference, so if m/c 4 gives you the option, try the slowest burn speed you can, and there is always a possibility that even a new cd can have a bad sector on it. Are you using cd-r's, not cd-rw's, cd-rw will not play on most cd players.
I'm officially out of ideas...next...
Later
Albert