Apple 5.25 PC Drive only supports disks that are formatted using the MFM
encoding methods. Therefore, it does not read ProDOS-formatted disks, which
use GCR. Alternative ways to move data from the Apple II to the Macintosh
include AppleShare, a serial link (cable and/or modem), and by first moving the
ProDOS data to 3.5-inch disks, which any Macintosh will mount.
You may find the AFE Works-Works translator helpful when actually translating
the files. It is on the InfoSource CD-ROM available from Apple.