Sony RDR-GX7 owners, how often do you get dirty disk errors? Hi, I own a GX7, and I have been getting lots of the dirty disk errors. IE about 1 disk in 3 came up with the error. The disks I used are brand new and are not dirty. I sent my GX7 back for repair, and they gave it a software update, it is now supposed to be "fixed". I have tried about 9 new disks since repair, and 3 of them came up with the error again, when recording. Is this normal? How often do you get the dirty disk error? Do you think I should send my GX7 back for repair again? Thanks for any help.