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Q: Size of ATSC files? ( Answered 5 out of 5 stars,   0 Comments )
Question  
Subject: Size of ATSC files?
Category: Computers > Graphics
Asked by: doctorow-ga
List Price: $5.00
Posted: 18 Apr 2002 17:16 PDT
Expires: 25 Apr 2002 17:16 PDT
Question ID: 1097
How much space would one hour of ATSC-encoded, cleartext video 
occupy on a harddrive (without compression beyong any that are part of 
ATSC)?
Answer  
Subject: Re: Size of ATSC files?
Answered By: cindy-ga on 18 Apr 2002 17:56 PDT
Rated:5 out of 5 stars
 
Hi Doctorow,

According to the Advanced Television Technology Center:

http://www.attc.org/interop.pdf

“Because of the extremely high bit-rate of ATSC transport material, each 14-
minute transport stream fills approximately 1.9GB of hard drive space.“

Which is corroborated by the information at AccessDTV.com:

http://www.accessdtv.com/pages/adtv_questions.htm#q35

”To record 30 minutes of full-blown HDTV requires about 4GB. Remember, HDTV is 
delivered at 19.4 megabits per second!”

According to this information, 1 hour of ATSC-encoded video would require just 
over 8GB of hard drive space.


Other useful URLs:

Layperson explanation of ATSC at whatis.com
http://whatis.techtarget.com/definition/0,,sid9_gci331797,00.html

Search terms used:

ATSC encoded video "hard drive space"


Best regards,
Cindy
doctorow-ga rated this answer:5 out of 5 stars

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