After seeing this, I too called the OfficeMax Rebate center. And after awhile on hold, the csr told me that they have an internal memo that states that the CenDyne rebates will work for the Pacific Digital dvd-ROM drive.
For further verification, I called the toll-free number on the back of the CenDyne rebate form. I spoke with a service manager there who ran the Pacific Digital UPC # (644405301159) and verified that the $25 rebate (offer 02-51296) is valid for this UPC.
For the $20 rebate, OfficeMax has the rebate form showing offer #02-51138. The manager told me that they do not have that offer # listed, however, they do have #02-51139 listed and that the UPC is valid for that rebate as well.
I called the OfficeMax rebate center again to inform/verify this information with them. They weren't able to verify over the phone. I'm supposed to receive an email in the next day or so.
I was ready to send these in today and I think I still will, however, I'm going to list both offer #'s on the $20 rebate envelope.