Hi - just checking my assumption here. One recording on Magic has huge probs. Runs fine, then hits area of garbled vision- looking like old school tape damage. it then clears, good pix, but  no audio and wont go beyond a point and starts looping back a few secs up to the no go point. I can fast forward through these, so I presume it is an area of the disk that may be no good? disk is getting fairly full if that is of issue. would rather not return it or reformat...but what do you think?  cheers Theo.