JVC HM-DH30000U's D-VHS anyone? - AVS Forum
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post #1 of 5 Old 09-21-2001, 08:45 AM - Thread Starter
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Anyone seen this yet? The HM-DH30000U's D-VHS HS (High Speed) mode operates on a 28.2 Mbps data transfer rate, which exceeds the 19.3 Mbps ATSC standard for HDTV broadcasts. The HM-DH30000U can record 1080i, 720P, 480P and 480i ATSC formats when connected to a digital set-top box via IEEE 1394 (i.Link/FireWire).

Each D-VHS cassette has a capacity of 50GB, which provides four hours of HD-quality recording; recordings can also be made in STD mode at 14.1 Mbps and the LS3 mode at 4.7 Mbps -- the latter mode is capable of squeezing 24 hours of video onto one cassette. Click here for entire article: http://www.postindustry.com/brief/ma...,29925,00.html
Any comments? Anyone care to give a guess on the price?

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post #2 of 5 Old 09-21-2001, 11:41 AM
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Last January, at the CES show, JVC showed a clip from U-571 which was specially mastered by the Hollywood production studio at the full 28 Mbps. It was shown on, probably on about a 20 ft. screen, and looked absolutely magnificant. Since I did not see two side-by-side images, I can not make a real comparison. A JVC spokesman said that JVC is trying develop a rental market for D-VHS tapes as a replacement for VHS.
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post #3 of 5 Old 09-21-2001, 09:40 PM
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I believe only the DF480 DVHS tapes hold 50 GB and these cost around $60 each by the time they get to the US (and the recent decline in the US dollar means they could easily cost more).

Orio

Prerecorded movies that use the full 28.2 Mbps would be great but I have long wondered why the Japanese manufacturers of DVHS recorders don't offer an ATSC mode since a DF480 tape could hold 350 minutes of ATSC HDTV.

Milton Henry

[This message has been edited by MiltonH (edited 09-22-2001).]
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post #4 of 5 Old 09-22-2001, 11:04 AM
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They do. I have the 30000 Japanese version, and have no problem to read/write ATSC tapes.
Also, it can use cheaper SVHS tapes to record HD instead of DVHS ones.

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post #5 of 5 Old 09-22-2001, 12:40 PM
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Robena

I have read that the JVC will play and dub ATSC tapes but that was not what I was questioning. It appears that the JVC records at 28.2 Mbps in the HD mode no matter what rate the incoming HD signal is really at otherwise a DF480 tape would be able store close to 6 hours of HD on one tape. I know Gridleak (Roger) uses DF480 tapes often and he has never mentioned being able to get more than 4 hours on a tape. Roger, are you out there?

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