It's actually quite hard to work out what the price is in a different currency, because it's not easy to know what the cost of living is. On the face of it the prices for Blu-ray burners is about the same, but is $100 the cost of a loaf of bread, or a tank of petrol? I was considering the price here compared to DVD burners. Blu-ray burners have been around a long time and should be much cheaper by now, unless the price was being fixed.
Yeah, I agree, memory sticks are not very reliable, not even the very expensive ones.
You get Blu-ray coasters? what burning software do you use? I use BD-re discs just in case, but I've not had more than a very few coasters yet. DVDFab and Clone BD. Both work fine.
I don't know why the HDD copies get corrupted, I have tried MK5 and the usual BD format. They start out OK, then months later a lot of them either won't play, or the audio gets loads of drop outs. All the drives I back up to are WD veloceraptor enterprise verities, I don't know what's happening there.