I found the following code in the Blackberry.alx file. It says 8703 and 8830 shouldn't get the ringtones but yet the file has 8830 in the file name. However, the .cod file it refers to is NOT in the the 8830 OS in .77.
Code:
<!-- 8703 and 8830 should not receive these ring tones -->
<!-- Ring tones for the 8830 -->
<fileset Sound="Tunes7130c" series="8800" radio="CDMA-GPRS">
<files>
net_rim_bb_medialoader_8830.cod
</files>
</fileset>