Recording miniDV onto DVCAM material causes dropouts at DVinfo.net

Glenn Chan · October 2nd, 2005, 10:00 PM

Suppose you shot DVCAM onto a tape, then shot miniDV over it. At the transition points, you will get a very high number of dropouts (very, very obvious). There'll also be a TC break at the end. At other points in the footage, some of the original DVCAM material may "leak" through.

So anyways, something to avoid.

Sean McHenry · October 3rd, 2005, 08:29 AM

Never heard of this "leak through" as the signal strength on the tape is the same in DV and DVCam. The breakup you are going to see is as the deck is switching mdes internally from higher to slower or slower to higher data rates.

You will also have an imediate tape speed change which may cause other issues as DVCam is 1/3 faster than MiniDV. In that changeover point, you are asking your deck to either speed up or slow down as well as change video stream speeds.

Not a good idea to record differing formats on one tape...I have done it too. It shouldn't hurt anything. Once it locks speed and formats, you are good to go again.

Sean

Glenn Chan · October 3rd, 2005, 05:09 PM

By "leaking" through, I mean:
At certain frames, you can see parts of the original recording.

October 2nd, 2005, 10:00 PM	#1
Glenn Chan Inner Circle Join Date: Jun 2003 Location: Toronto, Canada Posts: 4,750	Recording miniDV onto DVCAM material causes dropouts Suppose you shot DVCAM onto a tape, then shot miniDV over it. At the transition points, you will get a very high number of dropouts (very, very obvious). There'll also be a TC break at the end. At other points in the footage, some of the original DVCAM material may "leak" through. So anyways, something to avoid.

October 3rd, 2005, 08:29 AM	#2
Sean McHenry Trustee Join Date: Mar 2004 Location: Hilliard, Ohio Posts: 1,193	Never heard of this "leak through" as the signal strength on the tape is the same in DV and DVCam. The breakup you are going to see is as the deck is switching mdes internally from higher to slower or slower to higher data rates. You will also have an imediate tape speed change which may cause other issues as DVCam is 1/3 faster than MiniDV. In that changeover point, you are asking your deck to either speed up or slow down as well as change video stream speeds. Not a good idea to record differing formats on one tape...I have done it too. It shouldn't hurt anything. Once it locks speed and formats, you are good to go again. Sean __________________ ‘I don’t know what I’m doing, and I’m shooting on D.V.’ - my hero - David Lynch http://www.DeepBlueEdit.com

October 3rd, 2005, 05:09 PM	#3
Glenn Chan Inner Circle Join Date: Jun 2003 Location: Toronto, Canada Posts: 4,750	By "leaking" through, I mean: At certain frames, you can see parts of the original recording.