I hope by HD you mean High Definition, not HD-DVD which is gone.
You have to use HD-Blu-Ray type of recordable discs?
To make a blu-ray from hidef camcorder, or from hidef cable box, or record to a blu-ray recorder, yes you need to use Blu-ray media, called BD-R (write once) or BD-RE (rewriteable).
Will one disc work for both types?
Ok so you meant HD DVD and Blu-ray. No they don’t work. HD DVD disc can only play on HD DVD player. Blu-ray disc can only play on Blu-ray player. However there is Samsung and LG combo Blu-ray/HD DVD player. LG BH200 is around US$ 600.
For PC, LG GGW-H20L can burn to blu-ray and also read HD DVD (can’t burn HD DVD), around $275-300. The player only, LG GGC-H20L plays both Blu-ray and HD DVD movies is less than $200.
A regular 8.5 DVD DL Disc won’t work?
It will work but you still need a blu-ray or hd dvd player to play back.
Are HD & Blu-Ray Movies 25GB?
HD DVD-R SL: 15GB single layer
HD DVD-R DL: 30GB dual layer
BD-R: 25GB single layer write once
BD-RE: 25GB single layer rewritable
BD-R DL: 50GB dual layer write once
BD-RE DL: 50GB dual layer rewriteable
Just starting to learn about HD & Blu-Ray.
Still the same here. Welcome!