Idrive backup MP3 to USB
I have the BMW 318 since a couple of months with the latest version of the Idrive.
I have put some MP3 from USB sticks (in the glove department) to the harddrive.
Now I'd like to save all the music from the harddrive to a high capacity USB stick.
I've tried with a 4GB stick and it indeed copied all the MP3's from the harddrive, BUT the file extension has changed from MP3 to BR4.
The file sizes are exactly the same (MP3 <-> BR4), but the file contents are different. I opened them with an hexadecimal editor and they indeed do not match.
I tried with another stick (SanDisk 8GB) => same result.
Does anyone know why the extension is changed by my BMW, and how to open those BR4 files? I've checked with Google -> no luck. I changed the extension to MP3 -> did not work.
Thanks for any help you can provide me.