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Hi Geoff, did you split the DVD in half?
I usually cut it down the middle, twist it a bit and begin to carefully pull apart the two halves(remember DVD's are dual layer, even the blank ones).
If you do this carefully you should be able to cut a decent pie wedge from a part that isn't damaged(which happens)
Now, your continuous spectrum : happened to me also.
I realised that for some reason the ''higher order'' spectrum(to the right of the main one was where all the detail was???......that was with a CD though.
When I replaced the CD wedge with a DVD wedge, I mucked around with the angle of the wedge while looking through the view hole and suddenly, there it was............bright and detailed. The image was more to the wide, top end(closer to the view hole) of the wedge.
A couple of things to check: the wedge has to be cut from the CD as you would a ''pie''.
That wedge is mounted directly under the view hole with the wide end at the top and the small end stuck down in to the tube.
The position and angle of that wedge of DVD is important and you may need to fiddle with it a few times.
Also, the slit must be horizontal, NOT vertical in relation to the wedge and view hole.
Keep trying mate............it's a bit fiddly, and a P.I.T.A., but you should see the detail sooner or later. Keep moving your wedge and your eye around and it will pop in to view.
Good luck.
Rob.
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