Rob,
an ISO image of the disk is as good (or bad) as the disk itself; image
quality, menus, navigation is all intact, it's similar to doing DD on a
hard drive. Once you've got an ISO you should be able to run the .vob files
through another conversion utility (I've just done it in Openshot of all
things!), or re-capture in new format using VLC's convert function, or just
re-record it through VLC; sans menus and navigation obviously.
Sounds like your DVD player is struggling with old media; either the laser
is losing focus or the sub-strata in the old disks are starting to
crystalise. Not all optical media last so well, even branded disks. Copy
them, back up and throw anything that gives you trouble.
Rgds
RC
Robin Catling
Full Circle Podcast
On 18 May 2012 19:09, Rob Malpass <linux@???> wrote:
> Hi all****
>
> ** **
>
> [OK - if you're sick of the sight of emails from me about ripping DVDs - I
> don't blame you and you're probably best not reading further]****
>
> ** **
>
> For the hardy breed that have gone past that disclaimer please bear with
> me. I have these 200+ "DVD+RWs" recorded since 2004 and the following
> phenomena have been observed.****
>
> ** **
>
> 1) Very few (10-20%) play ok in either a DVD player, a DVD drive on a PC,
> a console or (most irritatingly) the darn machine that recorded them.****
>
> 2) In most cases, if playing though the DVD recorder that recorded them -
> it gets to around 40-50 minutes in and just about freezes. Identical, you
> might think to the disk being dirty - but they have been well looked after
> and are pristine.****
>
> 3) Ripping software has (because the content has camera angle moving)
> proved pretty bad. All sorts of results from delayed audio, to "wavy"
> vertical lines when the camera angle moves and nothing has fixed this.
> I've tried Handbrake, Alcohol52%, DVD Decrypter, Digiarty and just about
> everything else suggested.****
>
> 4) This is what's really odd... I have just created an iso from a DVD+RW
> showing the behaviour in 2) above. Mounting this and "playing a DVD" it
> *seems* to work fine! ****
>
> ** **
>
> Now here's the dilemma as I need to get a working strategy to get rid of
> 200 disks as I hope to move house shortly...****
>
> ** **
>
> a) Why is making an iso working when I can neither rip nor play these
> things properly?****
>
> b) If I simply make iso images of these disks, this is equivalent to
> making a copy of the disk itself is it not? As such, if I happen to find
> a workable ripping solution at some stage later - all I have to do is mount
> the iso do I not? In other words, I'm not losing anything at all by
> creating an iso - that is right isn't it?****
>
> ** **
>
> The reason b) is bothering me so much is that my current method of
> watching these ripped videos and dvds is via a netgear neotv which is a
> little box under the tv that can understand most file formats. I very
> much doubt if it will understand isos. To be honest, I don't care if it
> doesn't understand isos if one day I can transform these isos I will be
> creating into avis, mpgs or whatever but it's proved impossible so far to
> go from dvd+rw to avi. Perhaps iso to avi at some later stage might be
> easier - but the key is I don't want to lose anything in the process of
> going from dvd+rw to iso.****
>
> ** **
>
> Sorry this has been a bit rambling but I've spent a lot of time over the
> last few years building up this library - I don't want to lose the physical
> media in the move and I certainly don't want to lose the content thanks to
> an oversight.****
>
> ** **
>
> After all this - my question boils down to - do I lose anything if I
> create an iso of a dvd+rw image?****
>
> ** **
>
> Cheers****
>
> Rob****
>
> --
> Please post to: Hampshire@???
> Web Interface: https://mailman.lug.org.uk/mailman/listinfo/hampshire
> LUG URL: http://www.hantslug.org.uk
> --------------------------------------------------------------
>
--
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Please post to: Hampshire@???
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