Page 1 of Sharp 620 layer changes

I know that some players are better than others at layer changes, but does anyone else have any experience of the Sharp 620 and how it copes with them.

Sometimes mine pauses, plays and then pauses and plays again (sometimes 3 times), some discs are better than others, some viewings of the same disc are better than others.

Is it common to these players, or is it faulty?

Cheers
Pete