converting a RAR file to BIN

Not sure whether this is the correct forum
Recently I bought a dvd player which unfortunately needs firmware updates installed from time to time.Anyway I goit in touch with manufacturers and they sent me this email with the RAR download.

We would recommend downloading and installing the 00-0523 Firmware
( http://www.oppo.se/product_show.asp?cid=&pid=5&id=31&show=download).
You will need to extract the file from the RAR archive then rename
"BE981-00-0523.BIN" to "935.BIN". You will then use a Data burning
program (such as Nero Burning ROM) to make a new "DATA CD" with "ISO
9660 Only (non-Joliet)" burning instructions in "Mode 1" and "Disc At
Once (DAO)" write type. Put the disc into the player and follow the
onscreen instructions.

Now I also downloaded Stuffit expander to do the conversion but found the file changed to VCL which is a media player prog for some reason.Anyway I removd the VCL prog and started again and ended up with a bin file on my desktop.So far my efforts at renamimng and burning ,whilst producing a result, (ie the cd burnt and there is content) my dvd player wont recognise it. So I must be doing something wrong in the burning /renaming procedure. First I look for some way of renaming it and the only way I can find is by right clicking the file and click "get info" and at the bottom where the file name is shown I change it to 935 BIN.Then I click "New burn folder" and drag the Bin file into the resulting cd burning icon in desktop .All well and good except as I said my player will not recognise the cd data( blank cd are cd -r which worked ok with another recording)The DVDp manufactureres claim the buring should work ok in Disc utilty but I cant get the file in there. Any suggestions? Thanks