I was trying to decide between the pana eh50 and toshiba xs34, and yesterday finally plumped for the latter, and I must say I'm very impressed. However, the major Pana selling point was the quality of the LP 4 hr record. Why is it that other players cannot match this? I believe there is a certain point at which the 'lines' half, is that correct? If so, what is to stop me recording at say 4.0 instead of 4.6 in order to squeeze those last few minutes of a 2.5 hr film? Surely the difference in quality would only be minimal? Can someone explain the lines concept? Ta!