cd audio as cd mixed?

[deirytanks]

My brother has recently bought an Audio cd from some aerobic club( he is a spinning instructor) and gave me to burn it cause he needs more than one copy(he has diffrent cd sets when traveling through clubs). When i insert the cd to an audio cd in my car, the disk plays fine. But on my dvd player and pc i can only see one track. The rest are data tracks.
At first, easy cd-da fixed that problem with subcode analysing. But now that doesn't help on the new cds he brought me.

Any possible way to backup an audio cd that is read as a cd-mixed?