It's not really nothing big... and I'm sure there isn't A LOT of use for this anyways. Just a small suggestion, that I imagine would only take 1 minute to impliment... if it took any longer, wouldn't really be worth mentioning 
I love the auto rename if the name is longer, feature. It makes transfering disks to the HD A LOT easier... especially when you're sending thousands of mp3's or something. Only time I get a failed file... is when theres an illegal charecter in the filename. I'm pretty sure thats what it is... I Don't think the Xbox filename allows "=" Signs in the filename. Or a few other symbols, which some of the files I'm transfering has. Not a big problem... just thought it'd be cool if the bios auto renamed files that weren't allowed.
I love the auto rename if the name is longer, feature. It makes transfering disks to the HD A LOT easier... especially when you're sending thousands of mp3's or something. Only time I get a failed file... is when theres an illegal charecter in the filename. I'm pretty sure thats what it is... I Don't think the Xbox filename allows "=" Signs in the filename. Or a few other symbols, which some of the files I'm transfering has. Not a big problem... just thought it'd be cool if the bios auto renamed files that weren't allowed.