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  1. Member
    Join Date
    Dec 2006
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    I am interested in a DVR/ dvd recorder with HDD - but it only records in +VR mode.

    There seem to be a lack of technical info around the internet about the spec - and I'm hoping someone here can enlighten me.

    I believe - but am not 100% certain - that +VR mode refers to the disk formatting itself - not a separate video standard. Can anyone clarify this?

    The other differences appear to be how all muxed video/audio is recorded as a sequential vob file(s) instead of one vob / title.

    I know +VR is supposed to be reasonably compatible with dvd-video - which means that the disk format and video recording format (mpeg2/aac) would have to be exactly the same.

    I know there is an extra folder made

    If I have a +VR disc - and copy the VIDEO_TS folder to my computer and make a dvd out of that - would the disc be dvd-video compliant - or are there technical differences in the mpeg encoding as well with +vr?

    Thanks,

    --Rob
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  2. Video Restorer lordsmurf's Avatar
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    Jun 2003
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    DVD+VR is a subset of DVD-Video.
    The DVD-Video standard includes both disc/data formatting requirements, as well as video data requirements.
    DVD+VR is the same way, including both.

    DVD-Video does not use one long VOB file either. DVD-VR does, however. (Long VRO file, actually.)
    DVD-VR and DVD+VR are not the same.
    Wikipedia claims that DVD+VR uses one titleset, but that's not my observation. That's just not correct.
    Titleset (VTS) and VOB is not the same.

    As long as the VIDEO_TS is copied and re-burned with a UDF+ISO9660 mode formatting, it will be fine.
    Again, already DVD-Video compliant, being a subset.

    All DVD recorders use DVD-VR or DVD+VR.
    DVD-VR comes with the added nuisance of "video mode" or the incompatible "VR mode"
    DVD-Video was not created with DVD recorders in mind, hence the backwards "VR" hacks.
    Last edited by lordsmurf; 8th Mar 2010 at 19:14. Reason: disambiguation added
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