Garak11 said:
I had D* for nine years (and E* for five). Both services have some issues that you should be aware of: bandwidth being the biggest.
Well yeah, that's always going to be an issue with something that has finite space. Fiber optics don't have that problem, but satellite transponders obviously do, so compression is the only option.
Neither of them, right now, have enough birds (satellites) to service all of the HD content they claim to be rolling out this fall. In addition, they heavily compress the video signal.
Well, that's being solved in two ways. One, the switch to MPEG4 compression from MPEG2, and the addition of new birds. E* is supposed to launch some new birds soon. D* dish just launched DirectTV 10, and E* is supposed to get another one or two up sometime in the near future as well.
But back to the MPEG4 thing. That'll essentially double the channel capacity that each transponder can hold. As MPEG4 is a compression algorithm that is object-based, rather than frame-based like MPEG2 is. Frame-based compression is when the whole frame is compressed as one entity where only the changed pixels are different in each frame. Because each frame is compressed individually this takes up more bandwidth. With object-based compression in MPEG4, each object on-screen is compressed once, and is redisplayed as it moves on the screen, which only then leaves new stuff on screen to be compressed. It sounds a little strange, but this object-based compression system is a more efficient compression and you actually get a slightly better picture with it over MPEG2. iPods use MPEG4 and if you download a MPEG4 video on your computer and a MPEG2 version of the same video, you'll notice that the MPEG4 video is much clearer.
I was startled when I switched to Verizon FIOS this past winter...to see a massive improvement in picture quality. Also, I have, currently, 28 HD channels with a virtually unlimited amount of room for adding more, all uncompressed.
Well, that's wonderful, but if you live in Backwater, Kansas or something, it'll be a while before FIOS reaches Podunkville.
Oh, by the way, there's also been a lot of issues with D* receivers failing, rapidly. And that can a be a big pain in the butt.
I don't doubt that, but I've heard the same horror stories with HD cable receievers as well. My uncle went through 3 boxes before he finally got one that worked right. Me, I had a problem with my E* ViP622, but in the end it turned out to be a loose connector on my co-axial up in the attic. We found this
after going through a replacement LNB
and receiver.