Can a DVD-R be used to put normal data on with a CD-RW?

Like the subject asks :)?

Can a DVD-R drive be used to put data on a CD-RW disc?

Most of the time, yes, but not on the industrie’s fastest write speeds of CD-R(W).

Can a CD-RW drive be used to put data on a DVD-R?

No, the DVD media’s physical format density is different than what a CDRW drive laser can work with.

You mean: Can a DVD-R writer be also used as a CD-R/-RW writer? The answer is yes in most cases. I don’t know any DVD+RW writer that cannot write to CD-R/-RW media.

If you are asking id a CDRW can write data to a DVD-R, then the answer would be no, I believe