Help with frizzyness on bottom of the dvds

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Help with frizzyness on bottom of the dvds
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ema609
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May 16, 2009 - 8:24 pm
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--------------------------------------------------------------------------------

I converted a bunch of old home movies from vhs to dvds .
I used anyconverter and made them vln or wmv or mpg
I dont know
Anyway the bottoms of the tapes I guess were so old so when I made the dvd they have movenment on the bottom of the dvds.
I would love to have a free program and some baby baby steps how to do it.
I do not understand a lot of abbreviations and get lost easily
I would appreciate help very much
ty EMa

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Jim Hillier
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May 16, 2009 - 10:02 pm
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Hi Guys & Gals - I'm just gunna do a bit of an interpretation of the post from my mate Ema:

As you can see Ema has transferred some old videos from VHS tapes to digital files on her computer. The old tapes produced a waviness/ripple in the bottom 1/2" of the picture which, of course, was also recorded in the saved files. Ema would like to know what freeware she could use to edit out the ripply bit and, if possible, some help an how to do that.

Over to you,
JIM.

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ema609
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May 16, 2009 - 11:20 pm
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[b:2gbczaiq][color=#4040FF:2gbczaiq]Thank you Ozbloke for the translation
Now I hope
Someone will know what free program to use to help solve my problem
YOur Matey
Ema[/color:2gbczaiq][/b:2gbczaiq]

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Mindblower
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May 20, 2009 - 4:52 pm
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Kindly check to see if this problem is on the tape (view the VHS). If so, then it's probably a tracking problem caused by the VHS unit. No sure if a program can correct this, Mindblower!

"Light travels faster than sound;
That is why some people seem bright until you hear them speak"

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ema609
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May 20, 2009 - 8:46 pm
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Kindly check to see if this problem is on the tape (view the VHS). If so, then it's probably a tracking problem caused by the VHS unit. No sure if a program can correct this, Mindblower! [/quote:3anxenjh]

Hi thank you
I dont need help with the tracking .
I need someone that knows what I am talking about.

Ema

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David Hartsock
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June 13, 2009 - 6:45 am
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Ema,

What Mindblower was trying to say is... There aren't any non-destructive ways to fix this.

The fuzziness at the bottom is the result of a tracking error during your initial encoding and there is no way to easily fix it in it's present form.

Here is [i:2xdqswzp]simplified[/i:2xdqswzp] explanation of tracking on analog video tape (VHS):
When you insert the tape into the machine two arms pull the tape from the plastic cassette and place it around a drum. The drum contains a device called the video head and rotates as the drum rotates. On a side note, this rotation is what allows video tape to carry enough data to handle video. The video head is what reads and writes the video to the tape's magnetic coating.

If the tape and video head are not aligned perfectly you get fuzziness, or tearing, in the video output, which is what happened here. Making adjustments to the 'tracking' control on the VCR corrects this alignment between the video tape and the video head resulting in a better picture.

Once the video is encoded (converted from analog VHS to digital) this tracking error can not be corrected without losing parts of the picture. I.E, you could run it through a video application and crop the part of the picture that is fuzzy, but this would take more time to re-encode than to do the transfer over with corrected tracking. It would also result in a picture that doesn't fill your screen.

Your best bet (and I know you don't want to hear this) is to start over. Connect the VCR directly to a TV and ensure the picture is perfect, then remove the TV and connect the device you use to connect the VCR and computer. You will have to do this for each tape, because each VCR is slightly different in it's alignment. If you don't it is possible that you will end up with video just like you have now.

Hope that helps.

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Mindblower
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June 13, 2009 - 7:58 am
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Dave, this might sound weird coming from a guy, but you are my hero. Your soft spoken (okay, they were written) words are exactly what I should have said in the first place (but I thought a shorter reply would do).

It's not strange that people asking for HELP often bite the hands of those who offer assistance simply because they do NOT want to believe the obvious (it's a to simply explanation) and therefore rule it out. Sadly these incidents do and will go on since it's human nature to question, Mindblower!

"Light travels faster than sound;
That is why some people seem bright until you hear them speak"

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ema609
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June 13, 2009 - 10:11 am
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Dave,
Thanks again. I tried the tapes on a few vcrs and I still got the fuzz on the bottom. I remember years ago sometimes a tape didnt play on another vcr that I had made and the tracking usually fixed it
I thought there was a way to cut off the bottom. I also think that I once read somewhere that there is a way to put a frame or a black line on the video and thought there might be some way to get rid of the fuzz on the bottom.
I must of misunderstood what I read. Maybe they will invent something
I guess that when I orignally asked for help I should of put in the post all the things that I had tried.
Anyway thanks again I appreciate your explanation and trying to help me.

EMa

Jim
Thanks again for the translation
Ema

Mindblower
I dont bite anything unless I am hungry and it tastes good.
But think what every you want

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David Hartsock
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June 13, 2009 - 3:18 pm
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Ema,

Don't get me wrong. There are programs that will let you do what you want. If fact, DVDFab allows you to crop video at will. The problem with this method are:
1. You will further reduce the quality of the video - The whole 'silk purse out of a sow's ear' thingy. VHS isn't very good quality to begin with. Transcoding to another format and re-encoding to DVD will further lose quality.
2. Time. The time needed to rip the DVD, crop, and re-encode will be more than it would take to fix the initial tracking problem and do them again.
3. You'll need at LEAST one more program, and probably two or three if you go the freeware route.

1 and 2 are the biggies. If you are saving something for posterity or sentimental reasons you really want the quality to be the best it can be. Given the less than stellar quality of VHS you don't have a lot of options. Ripping will be relatively short, but cropping and re-encoding will probably take twice as long (assuming you have a fast CPU) as redoing the whole thing - if not longer.

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ema609
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June 13, 2009 - 3:56 pm
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Dave
Thanks
I will leave it alone I don't want to make the quality any worse then it is.
I thought the quality was great years ago.
loooooool
Who knew? anyway thanks again.
I enjoy your newsletter I wish it came out more often.
I learn a lot
Ema

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