It does delete your custom tunes. I knew it would, but that datalog feature was too tempting to pass up, I hope Bill is able to get my tunes back up and running shortly, I didn't think about it really and just did it.
Any idea if it'll be difficult to get the tunes back? Probably should have waited but thinking before I leap isn't my strong suit sometimes.
I'll head out and get the datalog rolling and see about getting the info for you.