I saw in an answer to another question a reference to "MPEG-4 (H.264) up to HP@L4.0". What does this mean? (this is the question for context).

I've seen home theatre projectors advertised with a "lumens" unit (e.g. 2500 lumens) and large LCD panels advertised with "contrast ratio" (e.g. 80,000:1 contrast ratio.) Are thes …

This is a question I'm asked a lot. What is the difference between a DVB-S and a DVB-T tuner?

What is an "anamorphic widescreen" DVD? How is it different from a "regular" widescreen DVD?

I saw the abbreviation HTPC in lot of questions, but I am not sure what makes a PC HT. Can you please, help me to understand?

I've seen a few questions here referring to "XBMC", and I'll confess: I'm in the dark – completely! Since nobody's asked the basic question here "What is XBMC?", I will indu …

Is a podcast a specific thing or an umbrella term for a recorded conversation. Do you need specific software or hardware to listen to one?

The comments on this question prompted this question. I'm looking for a definition of ATSC and a description of its usage. Could someone explain to the uninitiated what ATSC is an …