DVC, wow, that's a lot of HD space.

[PlatinumGold]

i just copied about 80 minutes of video from my DVC to my PC, WOW, that's a lot of HD space, approximately 15 GB's.

so, your telling me when i compress this to VCD (it turned out to be about 700 mb) i'm going to have decent quality?

I can't imagine how that could be. i haven't burned it to CD yet, but when i do, i'm definitely going to have to compare it to playing the VCD on my dvd player vs playing this directly from my DVC to my TV.

 

[vshah]

uncompressed video takes up a great deal of space. i had an uncompressed 1080i batman begins, that took about 80 gigs...compressed it can fit in a 5 gig wmv9 file with good quality

 

[her209]

Originally posted by: vshah
uncompressed video takes up a great deal of space. i had an uncompressed 1080i batman begins, that took about 80 gigs...compressed it can fit in a 5 gig wmv9 file with good quality

Wow, how long did that take?

 

[PlatinumGold]

Originally posted by: vshah
uncompressed video takes up a great deal of space. i had an uncompressed 1080i batman begins, that took about 80 gigs...compressed it can fit in a 5 gig wmv9 file with good quality

so, when we buy a DVD, is it uncompressed video?

 

[lobadobadingdong]

Originally posted by: PlatinumGold

Originally posted by: vshah
uncompressed video takes up a great deal of space. i had an uncompressed 1080i batman begins, that took about 80 gigs...compressed it can fit in a 5 gig wmv9 file with good quality

so, when we buy a DVD, is it uncompressed video?

yes....most of the time.

 

[imported_Phil]

Originally posted by: lobadobadingdong

Originally posted by: PlatinumGold

Originally posted by: vshah
uncompressed video takes up a great deal of space. i had an uncompressed 1080i batman begins, that took about 80 gigs...compressed it can fit in a 5 gig wmv9 file with good quality

so, when we buy a DVD, is it uncompressed video?

yes....most of the time.

😕
DVD, or more specifically MPEG-2, is compressed by it's very nature. You can see compression artifacts on DVDs if you know what to look for.

DivX/ XVID and the like simply compress it even further.

 

[pulse8]

Originally posted by: lobadobadingdong

Originally posted by: PlatinumGold

Originally posted by: vshah
uncompressed video takes up a great deal of space. i had an uncompressed 1080i batman begins, that took about 80 gigs...compressed it can fit in a 5 gig wmv9 file with good quality

so, when we buy a DVD, is it uncompressed video?

yes....most of the time.

No, it's not. Not ever. The DVC you're capturing is not uncompressed and that Batman Begins was DEFINITELY not uncompressed.

Uncompressed SD video has a bitrate of about 30 MB/s

Uncompressed 4:4:4 10 bit 1080p @ 24fps is 148.3 MB/s (1080i should be in that ballpark)

DVDs you buy in the store probably averages around 6 Mbit per second

DVCPRO or MiniDV footage comes in at 3.5 MB/s

If you want to really blow your mind on what kind of throughput is needed to play this stuff, a 4k True film scan that's 4096x3072 10 bit 4:4:4 needs 1080 MB/s in order to play smoothly.

 

[PlatinumGold]

Originally posted by: pulse8

Originally posted by: lobadobadingdong

Originally posted by: PlatinumGold

Originally posted by: vshah
uncompressed video takes up a great deal of space. i had an uncompressed 1080i batman begins, that took about 80 gigs...compressed it can fit in a 5 gig wmv9 file with good quality

so, when we buy a DVD, is it uncompressed video?

yes....most of the time.

No, it's not. Not ever. The DVC you're capturing is not uncompressed and that Batman Begins was DEFINITELY not uncompressed.

Uncompressed SD video has a bitrate of about 30 MB/s

Uncompressed 4:4:4 10 bit 1080p @ 24fps is 148.3 MB/s (1080i should be in that ballpark)

DVDs you buy in the store probably averages around 6 Mbit per second

DVCPRO or MiniDV footage comes in at 3.5 MB/s

If you want to really blow your mind on what kind of throughput is needed to play this stuff, a 4k True film scan that's 4096x3072 10 bit 4:4:4 needs 1080 MB/s in order to play smoothly.

so 15 gb for about 80 minutes of video is about right.

nice to know. thanks.

 

[lobadobadingdong]

Originally posted by: pulse8

Originally posted by: lobadobadingdong

Originally posted by: PlatinumGold

Originally posted by: vshah
uncompressed video takes up a great deal of space. i had an uncompressed 1080i batman begins, that took about 80 gigs...compressed it can fit in a 5 gig wmv9 file with good quality

so, when we buy a DVD, is it uncompressed video?

yes....most of the time.

No, it's not. Not ever. The DVC you're capturing is not uncompressed and that Batman Begins was DEFINITELY not uncompressed.

Uncompressed SD video has a bitrate of about 30 MB/s

Uncompressed 4:4:4 10 bit 1080p @ 24fps is 148.3 MB/s (1080i should be in that ballpark)

DVDs you buy in the store probably averages around 6 Mbit per second

DVCPRO or MiniDV footage comes in at 3.5 MB/s

If you want to really blow your mind on what kind of throughput is needed to play this stuff, a 4k True film scan that's 4096x3072 10 bit 4:4:4 needs 1080 MB/s in order to play smoothly.

I stand corrected. IEEE specs are mpeg-2 for pre-recorded video. (and all my movies are 8000Kbps/s constant bit-rate)

 

[pulse8]

"and all my movies are 8000Kbps/s constant bit-rate"

You mean store bought or the ones you make yourself?

If they are store bought they are almost always variable bit-rate and aren't that high they may peak that high, but the average is probably around 6 or 7Mbit. If you are making your own, the 8000kb/s your doing it at is probably higher than is needed. Most DVD players will choke on anything higher than 10Mbit (including audio and video) and you'll want to leave some head room because different players will read different recordable media better than others and so that limit can drop easily.

 

[lobadobadingdong]

Originally posted by: pulse8
"and all my movies are 8000Kbps/s constant bit-rate"

You mean store bought or the ones you make yourself?

If they are store bought they are almost always variable bit-rate and aren't that high. If you are making your own, the 8000kb/s your doing it at is probably higher than is needed. Most DVD players will choke on anything higher than 10mbit (including audio and video) and you'll want to leave some head room because different players will read different recordable media better than others and so that limit can drop easily.

That's what my DVD editing software (ulead movie factory) says DVD quality is. I've never seen a pressed DVD marked with its speed.