Ok fellas, straight answer needed here. I have a Screenplay 4800 (X1 as was) and a Yamaha S540 and I LOVE them both. Maybe more than is healthy. I think I've got them set up about right (I have all the audio malarky down pat, we won't go into all that here), but I wanna get the 'calibration' as good as I can. Until now I have only set the things 'by eye' and with the few patterns and whathaveyou on the THX Setup parts of T2 etc. My question is this...bearing in mind that £15 is still quite a lot of money to me (for 'me' read 'HER'), would the DVE disc be a worthwhile investment? Or are we talking about very minor and subtle changes? Ok, thats 2 questions.