DVD problem - and an unusually early visitor

I put a load of data files from my Windows PC onto a dual layer DVD - but it turns out that my iBook G4 can't read it, although it can play dual-layer movies. Is there any way I can write that type of data DVD so it will be compatible? Not an urgent problem, just a small nuisance.

Talking of small things, when I was getting ready for bed last night I noticed a fairly large ladybird on the blind in the bathroom. This morning it's still there, moving around slowly. I'm really not sure what brings it out this early in the year, nor what it can possibly be finding to eat in my bathroom. I took a couple of pictures, if any of them are any good I'll put them on line tonight.

Fly away home...

Here's the best picture of last night's surprise visitor, after I moved it across to a flower pot to get it out of the way - none of the others were really clear enough, which reminds me that I really need to get a proper macro adaptor for this camera. I really have no idea which species this is, but I think it's pretty cute.