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Is anyone else getting dashed (overscanning) lines on top of the picture during rage?

It took me a while to realise, but since last November, I've been getting dashed 'overscanning' lines on top of the picture during rage... but only on videos that are encoded by them before February 2012. Here's a picture of what I mean, across the top left of the screen:



On other videos, the lines appear along the middle of the top of the screen.




It doesn't appear on videos rage have encoded since February 2012 (those with the larger, blurrier rage logo, slightly larger font, and duller/less-sharp picture), as you can see below:



If a clip with dashed lines appears before one of these later-encoded videos, they disappear completely when the new video begins.

It's only on rage I have noticed this, though I probably haven't burnt any other ABC recordings to disc, other than the rage documentary that aired last week (it isn't on that).

It affects recordings on both of my DVD-Recorders (different makes), one with an aerial-in lead, the other without (using a set top box), so it isn't due to my devices.

I can't see the dashed lines when I'm viewing rage on my TV through my DVD player/recorders, but only notice it when viewing a file on my computer. If I play one of these isolated files on my TV though a USB stick or device though, I can see the dashed lines.

There have been a couple of episodes where it hasn't been a problem for these encoded pre-2012 videos, but I can't make out what made those episodes different.

I've also seen it on ABC ME, though sometimes it's not the repeats there, when it appeared on the earlier ABC airings.

I figure it might be a broadcast issue, given that it doesn't affect the post-Feb 2012 encoded videos, and other things encoded after then, such as retro month repeats of Countdown and Rock Arena (thankfully).

Re: Is anyone else getting dashed (overscanning) lines on top of the picture during rage?

The issue is that when the clips are played on computer, they do not have overscan. Without overscan, the full image is shown. The full image is not intended to be shown on television, therefore, you are missing out on some of the image when watching videos on television screens. Therefore you end up getting overscanning lines sometimes.

Re: Is anyone else getting dashed (overscanning) lines on top of the picture during rage?

Yep this is just an overscan issue. You won't see the lines on a normal TV because they deliberately don't show the outer few percent of the picture. It's a legacy from analogue TV, to hide non-picture related information used to trigger the scan lines in old CRT tubes and also to hide time code information which is probably what these dots and dashes are. Arguably the overscan concept is redundant now in the world of fully digital TV chains, but it lives on, and probably will live on for some time.

If it seriously bothers you, you could always crop it out in a digital video editing programme.

Re: Is anyone else getting dashed (overscanning) lines on top of the picture during rage?

Jason D.
The issue is that when the clips are played on computer, they do not have overscan. Without overscan, the full image is shown. The full image is not intended to be shown on television, therefore, you are missing out on some of the image when watching videos on television screens. Therefore you end up getting overscanning lines sometimes.


It has never been an issue for me with rage though until last November. Something must have changed in the way they broadcast these earlier-encoded videos, as nothing has changed at my end with recorders/set top box, and there have been 2 or 3 weeks since then when the overscanning lines didn't appear on these clips.

The dashed lines are brighter/even more noticeable on ABC HD.

BTW I noticed it on all of the rage clips you sent me (recorded before last November), but figured it must be something to do with the recording device/s you use. Didn't see it when watching on TV, but did when playing the disc on my computer.

Re: Is anyone else getting dashed (overscanning) lines on top of the picture during rage?

Clip Magnet
Yep this is just an overscan issue. You won't see the lines on a normal TV because they deliberately don't show the outer few percent of the picture. It's a legacy from analogue TV, to hide non-picture related information used to trigger the scan lines in old CRT tubes and also to hide time code information which is probably what these dots and dashes are. Arguably the overscan concept is redundant now in the world of fully digital TV chains, but it lives on, and probably will live on for some time.

If it seriously bothers you, you could always crop it out in a digital video editing programme.


As I've said, I don't understand why this is not an issue for any videos I've recorded on rage before November last year. Something must have changed at their end, because it hasn't at mine.

Is there a digital editing program you recommend? I've tried one, but it converts the file format to mp4 (and compresses it); I'd rather not do that.

Re: Is anyone else getting dashed (overscanning) lines on top of the picture during rage?

Hi Nathan

I get no overscanning on my recordings!! I recorded Rage last night straight onto my DVD Recorder and took it off this morning to edit some videos and I didn't have any overscanning whatsoever.

Re: Is anyone else getting dashed (overscanning) lines on top of the picture during rage?

Lee
Hi Nathan

I get no overscanning on my recordings!! I recorded Rage last night straight onto my DVD Recorder and took it off this morning to edit some videos and I didn't have any overscanning whatsoever.


Do you record in 4:3?

Re: Is anyone else getting dashed (overscanning) lines on top of the picture during rage?

ohnoitisnathan
Is there a digital editing program you recommend? I've tried one, but it converts the file format to mp4 (and compresses it); I'd rather not do that.

I'm in the Apple ecosystem which doesn't work for everyone of course. I use either Apple Compressor or MPEGstreamclip to transcode from the MPEG source to another format for editing, then edit using Final Cut Pro, and transcode back to MPEG (at 10 Mbps) for archival copies and my home media player, and deinterlaced MP4 for portable devices.

MPEGstreamclip is free and extremely versatile but hasn't been updated for about 10 years, so with OS updates over the years, it is becoming increasingly flaky as bits of it randomly don't work. The other programmes are pro level and cost real money. Despite it's name, Compressor is not just a video file compressor, it can transcode into just about any format.

For the MPEG file conversion, I output with Apple Intermediate Codec or one of the Apple ProRes formats if super high quality is really required. There are even lossless formats you can transcode into, but that is seriously overkill on my book. From my experience working with music videos from rage that were recorded on analogue equipment in the 80s and 90s, any loss in quality transcoding even into something like DV (which lots of people think is junk) is just not noticeable to my eye.

However I agree MP4 is not good enough, and I don't transcode into it for editing and it's not a suitable format for nonlinear editing anyway.

Re: Is anyone else getting dashed (overscanning) lines on top of the picture during rage?

Nathan,

From what I can see I don't get any of these overscanning lines on the top of my secreen

Re: Is anyone else getting dashed (overscanning) lines on top of the picture during rage?

Jason 'The Moderator"
Nathan,

From what I can see I don't get any of these overscanning lines on the top of my secreen


You won't see the lines on your TV, but if you play a disc on your computer, you probably will. They were on the 'How Can It Be' clip you sent me.

Re: Is anyone else getting dashed (overscanning) lines on top of the picture during rage?

Nathan,

I don't play my DVD's on my computer, only on my DVD Player/TV ...

So they are only visible when watching on the computer?

Re: Is anyone else getting dashed (overscanning) lines on top of the picture during rage?

At Jason B, very interesting!


I only watch my DVD's on my TV and not my computer, so this is why I am not seeing this on my recordings

Re: Is anyone else getting dashed (overscanning) lines on top of the picture during rage?

I've seen the overscan lines on the ABC ME repeats before, but they haven't been there the last few weeks. Odd. But ABC is still affected.

Re: Is anyone else getting dashed (overscanning) lines on top of the picture during rage?

I'm seeing the lines in all ratios on some videos when I'm editing on my Panasonic DVD recorder.

Re: Is anyone else getting dashed (overscanning) lines on top of the picture during rage?

Nathan
I'm seeing the lines in all ratios on some videos when I'm editing on my Panasonic DVD recorder.


The recorder I use for recording in 16:9 is Panasonic, but the other, older model I use for recording rage in 4:3 is Pioneer. I get the lines on both, but only for videos encoded by rage prior to February 2012. But the ABC ME repeats seem OK - for now, anyway (they were getting the lines a month or two ago too).

Re: Is anyone else getting dashed (overscanning) lines on top of the picture during rage?

Wow, the overscan lines weren't there on this morning's rage Vault episode!

I'd like to think my email alerting rage to this a few weeks back had an impact, but the lines will probably be back on the weekend

Re: Is anyone else getting dashed (overscanning) lines on top of the picture during rage?

The overscan lines now seem to be permanently gone.