disk Space needed for Sony HDV vs. Sony DV shot on an HDR-FX1 or HDR-HC3

[d***@gmail.com]

How much drive space does one minute of HDV captured from a sony hdr
fx1 or a sony hdr hc3 need?

Also, How much drive space does one minute of DV captured from a sony
hdr fx1 or a sony hdr hc3 need?

What' the factor between HD & HDV?

[Frank]

On 19 Aug 2006 20:38:54 -0700, in 'rec.video.desktop',
in article <disk Space needed for Sony HDV vs. Sony DV shot on an
HDR-FX1 or HDR-HC3>,

Post by d***@gmail.com
How much drive space does one minute of HDV captured from a sony hdr
fx1 or a sony hdr hc3 need?
Also, How much drive space does one minute of DV captured from a sony
hdr fx1 or a sony hdr hc3 need?
What' the factor between HD & HDV?

DV and 1080i HDV, over FireWire, from any make or model of camcorder,
has the same approximately 25 Mbps (mega bits per second) data rate,
which comes out to about 13 GB (giga bytes) per hour of storage space.

[L.P.LePage]

Post by Frank

Post by d***@gmail.com
How much drive space does one minute of HDV captured from a sony hdr
fx1 or a sony hdr hc3 need?
Also, How much drive space does one minute of DV captured from a sony
hdr fx1 or a sony hdr hc3 need?
What' the factor between HD & HDV?

DV and 1080i HDV, over FireWire, from any make or model of camcorder,
has the same approximately 25 Mbps (mega bits per second) data rate,
which comes out to about 13 GB (giga bytes) per hour of storage space.

\
Be careful - - the NEW Sony hdv recorders only capture at 15Mbps giving
lower
disk usage AND lower quality.[ the HD and CD recording media devices]

[Frank]

On Mon, 21 Aug 2006 07:15:53 -0400, in 'rec.video.desktop',
in article <Re: disk Space needed for Sony HDV vs. Sony DV shot on an
HDR-FX1 or HDR-HC3>,

Post by L.P.LePage

Post by Frank

Post by d***@gmail.com
How much drive space does one minute of HDV captured from a sony hdr
fx1 or a sony hdr hc3 need?
Also, How much drive space does one minute of DV captured from a sony
hdr fx1 or a sony hdr hc3 need?
What' the factor between HD & HDV?

DV and 1080i HDV, over FireWire, from any make or model of camcorder,
has the same approximately 25 Mbps (mega bits per second) data rate,
which comes out to about 13 GB (giga bytes) per hour of storage space.

\
Be careful - - the NEW Sony hdv recorders only capture at 15Mbps giving
lower
disk usage AND lower quality.[ the HD and CD recording media devices]

The Sony products to which you refer, the HDR-SR1 and the HDR-UX1, are
AVCHD-format camcorders, *not* HDV-format camcorders (the subject of
the thread was HDV, not AVCHD).

All HDV products, whether 720p (19.7 Mbps) or 1080i (25 Mbps), use
MPEG-2 ***@H-14 while the two Sony AVCHD camcorders just mentioned use
MPEG-4 Part 10 H.264 AVC. All Sony HDV and AVCHD products record
1080i; none record 720p.

The HDR-SR1 records to a hard disk drive at a maximum data rate of 15
Mbps while the HDR-UX1 records to Mini-DVD discs at a maximum data
rate of 12 Mbps. Neither of these products record to CD media.

[L.P.LePage]

Absolutely right - - I meant DVD and not CD- -
I only wanted to let others know that the newer Sony products mioght be
lower quality devices

Post by Frank
On Mon, 21 Aug 2006 07:15:53 -0400, in 'rec.video.desktop',
in article <Re: disk Space needed for Sony HDV vs. Sony DV shot on an
HDR-FX1 or HDR-HC3>,

Post by L.P.LePage

Post by Frank

Post by d***@gmail.com
How much drive space does one minute of HDV captured from a sony hdr
fx1 or a sony hdr hc3 need?
Also, How much drive space does one minute of DV captured from a sony
hdr fx1 or a sony hdr hc3 need?
What' the factor between HD & HDV?

DV and 1080i HDV, over FireWire, from any make or model of camcorder,
has the same approximately 25 Mbps (mega bits per second) data rate,
which comes out to about 13 GB (giga bytes) per hour of storage space.

\
Be careful - - the NEW Sony hdv recorders only capture at 15Mbps giving
lower
disk usage AND lower quality.[ the HD and CD recording media devices]

The Sony products to which you refer, the HDR-SR1 and the HDR-UX1, are
AVCHD-format camcorders, *not* HDV-format camcorders (the subject of
the thread was HDV, not AVCHD).
All HDV products, whether 720p (19.7 Mbps) or 1080i (25 Mbps), use
MPEG-4 Part 10 H.264 AVC. All Sony HDV and AVCHD products record
1080i; none record 720p.
The HDR-SR1 records to a hard disk drive at a maximum data rate of 15
Mbps while the HDR-UX1 records to Mini-DVD discs at a maximum data
rate of 12 Mbps. Neither of these products record to CD media.
--
Frank, Independent Consultant, New York, NY
[Please remove 'nojunkmail.' from address to reply via e-mail.]
Read Frank's thoughts on HDV at http://www.humanvalues.net/hdv/

[Smarty]

2 brief points I thought I could add...


First, the 13 GB per hour HDV content is already compressed in MPEG2 and
cannot be further compressed without comprising its' quality, whereas the 13
GB per hour DV content is only lightly compressed and can undergo conversion
to MPEG2 (or other formats) with the resulting file occupying around 3 to 4
GB per hour.

Second, the new, lower quality Sony HD camcorders are not, strictly
speaking, HDV format. The HDV format camcorders are 25 Mbit/sec devices,
whereas the latest "AVCHD" format consumer camcorders are 15 Mbit/sec.

Smarty

Post by L.P.LePage

Post by Frank

Post by d***@gmail.com
How much drive space does one minute of HDV captured from a sony hdr
fx1 or a sony hdr hc3 need?
Also, How much drive space does one minute of DV captured from a sony
hdr fx1 or a sony hdr hc3 need?
What' the factor between HD & HDV?

DV and 1080i HDV, over FireWire, from any make or model of camcorder,
has the same approximately 25 Mbps (mega bits per second) data rate,
which comes out to about 13 GB (giga bytes) per hour of storage space.

\
Be careful - - the NEW Sony hdv recorders only capture at 15Mbps giving
lower
disk usage AND lower quality.[ the HD and CD recording media devices]

[Martin Heffels]

Post by Smarty
First, the 13 GB per hour HDV content is already compressed in MPEG2 and
cannot be further compressed without comprising its' quality, whereas the 13
GB per hour DV content is only lightly compressed and can undergo conversion
to MPEG2 (or other formats) with the resulting file occupying around 3 to 4
GB per hour.

Yes and no. If you make a DVD out of your HDV-material, you resize it to
SD-format, which can be easily compressed to MPEG2 for DVD.

-m-
--

[Smarty]

Well, of course you can convert HDV to a lesser format such as standard def
DVD and thus make it smaller. Similarly, you can also take a DVD compatible
MPEG2 file made from DV, convert it to play on a cell phone, iPod, or Sony
Play Station, and make it one quarter or one tenth the size.

The point of my original reply was that the apparently identical capture
rates of 25 MBit/sec between HDV and SD video is a deceptive comparison
unless one takes into consideration the fact that one is already in a highly
compressed format (MPEG2) whereas the other (DV) is not. The fact that
further compression and down-sampling could be applied to either really
confuses the point IMHO.

Smarty

Post by Martin Heffels

Post by Smarty
First, the 13 GB per hour HDV content is already compressed in MPEG2 and
cannot be further compressed without comprising its' quality, whereas the 13
GB per hour DV content is only lightly compressed and can undergo conversion
to MPEG2 (or other formats) with the resulting file occupying around 3 to 4
GB per hour.

Yes and no. If you make a DVD out of your HDV-material, you resize it to
SD-format, which can be easily compressed to MPEG2 for DVD.
-m-
--