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  1. I have the following
    aldis Medion comp with the 105 pioneer rw
    i use dvd decrypter and then dvd2one
    and back up the entire disc from 7-9 gig down to 4.5 gig
    but on most of the disks that i use i get blocking or pixelation towards the end of the film
    using the same disks orange 4x bulkpack and 2x bulkpac and some inkjet printables i get this problem can anyone explain or give me a tip

    Any help

    please
    KAce
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  2. You are asking too much, compressing 7 - 9 gig down to one disc will result in blocking. It depends on how fussy you are, I personally hate the blocking, and have a 36" TV which shows up any blocking so stick to movie only backups. Even then with larger movies some blocking may be evident, but I have found instant copy to be the best of the simpler DVD9-5 programs. I did LOTR with DVD2ONE, and in my opinion it wasn't watchable, I did it with instant copy, it took 3 hours, but the result is almost indistinguishable from the original.

    Who watches the extras anyway

    Kevlar
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  3. I think the key here is "towards the end of the film".

    I suggest it's the media you're using. Try a different brand - preferably not one of the budget ones for now, and burn the same content to this new disc.

    If the problem disappears then problem solved. Personally I find Bulkpaq's to be variable, although my poor experience of them to date means I have not tried their brand in some time. They may have improved but their reputation took a knock as far as I'm concerned due to poor reliability in the last 15 - 20% of the discs that I had.
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  4. Retired from video stuff MackemX's Avatar
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    bulkpaq are no good for me either with my pioneer 105

    are they the lighter dye?

    as for 36" TV's, get a Sony with 100 Hz DRC and you won't be bothered by pixelation, makes even the poor images look half decent and IC jobs look class

    excellent TV and I wouldn't swap it for nowt else at the mo
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  5. MackemX, that is the TV I have got, had it 2 weeks, FS76. If the movie is blocking though, there is nothing the TV can do about it.

    Kevlar
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  6. Retired from video stuff MackemX's Avatar
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    good choice

    mine's the same model and had it 7 weeks but it makes makes my early DVD2One blocky DVD's look half decent compared to old TV

    Computer TV-Out is awesome, cos I can use 1024x768 and still use PC no problem

    Originals DVD's look awesome tho don't they

    p.s. I'm actually getting it replaced Tuesday cos I complained about the convergence on bottom right even though u can't notice it during normal playback, tho when I bought the Ulitmate DVD it showed it up, but then I am fussy regarding quality

    KAce what is the pic like if you play the files before you burn back on computer?

    what's the DVD play back like on the computer also?

    another thing to note regarding DVD2One is that at the beginnning the bitrate is high but it gets less towards the end resulting in pooorer quality. This was really bad in the early versions and later versions have got better but I don't know by how much
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  7. Computer TV-Out is awesome, cos I can use 1024x768 and still use PC no problem
    What do you mean? S Video in?

    Kevlar
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    Are you putting labels on these DVD's?
    This can often cause stress to the DVD surface which is more pronounced on the outlayers.

    1. Because any temperature fluctuation may result in the label shrinking/expanding slightly differently to the DVD surface, and
    2. Because the surface of the outer rim of the DVD is travelling past the laser at a greater speed than the inner rim, so any problems are amplified)

    The suggestion to play the DVD image from HD is an excellent diagnostic. From what you have described, I think your problem is the physical media, not the compression method to shrink the source.
    The glass is neither half-full, nor half-empty.
    It is simply twice as big as it needs to be.
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  9. Can I just point out the comment about the surface of the disc travelling at a faster rate is a little misleading ?

    DVD players (and CD players, for that matter), regulate the speed of the disc in order to maintain a speed of data transfer that effectively slows the disc down as it nears the outer edge.

    With a CD player, the data rate is fixed, however DVD players and the variable bitrate ability of the MPEG2 standard means that there is a small amount of deviance in the speed that a DVD may be spun at. A DVD player will generally have the equivalent of a 2x drive in it, and how this is used depends on the buffer size of the memory between the drive optics and decoder boards. If there is a lot of memory here, the drive does not need to be spun so fast in order to allow for re-reads and error correction. A well encoded disc will ramp up the data rate over a period of time instead of just peaking, in order to allow the drive and the FIFO memory on board to catch up and be ready for it.

    This means that if a small amount of memory is present, the drive may actually speed up slightly as the data rate increases to maintain a level of data in the buffer memory, but its rotation will always be slower at the outer edge (sort of CLV).

    The issue of affixing labels to the disc is usually exacerbated by adding wobble to the disc if it is not central. The disc is only clamped and spun from the middle, which means little devience in the vertical plane with respect to the optical block near the center, but the disc will flex slightly more at the end. If the disc starts to wobble, then it can resonate with the damping mechanism in the player and throw the laser pickup off focus. This does indeed get worse nearer the end of the disc, but it is unlikely to have a great deal of effect on the rotational speed of the disc per se.
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    I stand corrected on the cause.

    The effect, however, is that problems are more pronounced closer to the outer rim. (he stammers out quickly, trying to restore some pride).
    The glass is neither half-full, nor half-empty.
    It is simply twice as big as it needs to be.
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  11. wow impressed
    some very good tips
    1 have done a bout 10 films and tried various types of media all the three
    have come out perfect using same media and too failed
    2 as for trying to compress the entire film it dosent seem to be a problem
    for some films
    nut this one i like
    play the film on the pc b4 burning
    am using nero to copile the film
    will post any further details

    Great help guys

    thanks
    kAce
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  12. blocking isnt quite what i meant
    pixelation where th picture break up and stutters freezes then goes in blocks.


    Its the media played the copy on the dvd and the the rip on the pc
    the copy breaks up after 15 mins and the pc is so good you would have a hard job to see the diference
    so I am now going to look for some top quality disks

    any one got a good source

    once again guys

    Thanks

    kAce
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