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1080i HDV Tape question?

I have a HDV camcorder (Sony HDR-HDC7) do I need HDV tapes to record in 1080i or can miniDV tapes also record in 1080i.


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Found my answer

In reply to: 1080i HDV Tape question?

Switchable HD/DV Format Recording

The HDR-HC7 is capable of recording and playing back both high definition (HD) and standard definition (SD) video recorded on a standard MiniDV cassette.

But why offer Mini DV HD tapes then?

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Problem with a DV tape recording in "HDV1080i" mode

In reply to: Found my answer

I taped using a miniDV tape (sony brand), letting my Sony HDR HC7 record in HDV/DV auto mode. It appears to have recorded in HDV1080i onto the miniDV tape and I can playback on the camcorder screen without a problem. But Final Cut Pro won't let me import it because it says it can't see my camera via i-Link. I had used an HDV tape prior to this and had no trouble logging and capturing into Final Cut. Help?

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"They" claim the increased amount

In reply to: 1080i HDV Tape question?

of information from 1080i recording needs a "better" tape to reduce dropouts. High Definition video is ~ 4x more data than standard definition video.

I have been using "normal" (Sony and Panasonic) MiniDV tapes in my Sony HDR-HC1 for about a year (about 150 hours of video capture), and have not had a single drop-put...

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Conventional wisdom says don't switch brands of tape. Pick

In reply to: "They" claim the increased amount

one, and stay with it.

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I had read that...

In reply to: Conventional wisdom says don't switch brands of tape. Pick

and have not had issues using either Sony or Panasonic as indicated (knocking on my head). Admittedly, I use the Sony's about 85% of the time... and the Panasonic tapes only if there are no Sony's on the shelf and I am in a pinch.

What's the reason for staying with a single tape manufacturer? Is it technically proven or "word of mouth" conventional wisdom? (Not that it makes a difference - I am just curious.)

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Apparently, different manufacturers use different chemicals

In reply to: I had read that...

in their tapes. Mixing the chemicals can foul the heads and make it necessary to get them cleaned. One claimed result is an increase in drop outs. I now use only Sony Premium tape, and I haven't had as many drop outs as I was getting for awhile.

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Thanks... interesting...

In reply to: Apparently, different manufacturers use different chemicals

Who knew? I figured bonding rust to plastic had only so many ways (chemical interactions) to happen... but I suppose that is one reason there are different brands...

Are you aware of any qualitative data or is this just word of mouth? I appreciate the anecdotal evidence you shared that you have not had dropouts since moving to Sony tapes.

Before you settled on the Sony Premium MiniDV tapes (with the blue and black wrapper... and red tape cover mechanism on the the tape, right?), what were you using? When you started using the Sony tapes, was that on a new camera?

Frankly, I like using the Sony tapes because writing with a black sharpie on the red is easier to read than on the dark blue Panasonic cover. That I have not had any dropouts is table stakes from my viewpoint...

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I was using Maxells. Both of my cameras were bought used, so

In reply to: Thanks... interesting...

there was no way of knowing what tape they used before. When I began encountering drop outs, I switched to Sony tapes and asked about the problem. Part of the advice I got was to avoid switching tape brands. I have a GL2 which was purchased new, and it has always used Sony Premium.

Some of the premiums have a blue label. B&H ships them with an orange label, but they are still Sony Premium. Yes, they have a red tape cover.

I tried Panasonic once. It was a disaster. The first tape of a 3-pack convinced my camera that it was full. The second tape recorded OK, but, during capture, I discovered there was no audio. The third tape scored two points going into the trash can.

BTW, I now try to avoid drop out problems (I usually spot them as audio interruptions) by recording the audio on an M-Audio portable recorder. I also try to use two cameras so I can cut between the cameras.

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Interesting on the P-brand tapes...

In reply to: I was using Maxells. Both of my cameras were bought used, so

I was just starting on the road to a second camera... I figured capturing audio on two cameras would cover the field recorder requirement... but perhaps not...

Anyway, now that I dragged us down a rat-hole, thank you for your thoughts. I apologize to the original poster...

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Yes, the second camera helps cover the audio hole. However,

In reply to: Interesting on the P-brand tapes...

its sound usually differs from the first camera. That means it's tough to do a seamless transition. That's why I use the M-Audio recorder.

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DV and HDV are the same bitrate

In reply to: "They" claim the increased amount

Actually, the HDV format is not "more" data than standard definition DV. HDV is an MPEG2 compression stream and is 25Mbps - exactly the same bitrate as DV, but different method of compression. So, 10 min of DV would be the same size as 10 min of HDV.

Professionals should be the only ones inclined to buy the more expensive "HDV" tapes, no need to spend all that money for amateur shooting.

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In reply to: DV and HDV are the same bitrate

Then why does one hour of standard definition video and 1 hour of haigh definition video take up vastly different amounts of space on my computer? The de/code is different?

I grant you that they use the same amount of tape... 1 hour...

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In reply to: Interesting...

One is DV. The other is mpeg2. That's one of the problems of high def.

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Both the same

In reply to: Interesting...

Your computer is likely transcoding the imported data into it's own format which could be loss less or less loss then the mpeg2 on the tape.

The problem with mpeg2 is that it uses a 15 frame GOP (group of pictures) which 14 of the frames are derived from differences of 1 key frame. If a bit of dust knocks out a key-frame causing the loss of data to cascade and potentially taking out the whole GOP something that doesn't happen on DV so a dropped frame isn't as big of deal meaning cheaper tapes are ok.

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