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embedded subtitle...

Discussion in 'Convert DVD to another format' started by devlinne, Mar 20, 2012.

  1. devlinne

    devlinne Member

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    hi, i'm new to all this, so please bear with me!

    i'm using dvdflick to burn some videos, and i encountered a problem with one batch of videos. i burned 10 .mkv format videos with embedded subtitles (1.75GB all in all). when i tested the finished disc, i found out that the 10th (last) video didn't include the subtitles. all the other videos had no such problem. i did double-check, and can confirm that the original .mkv file did have subtitles on it.

    i just want to know how this can happen, and if you guys can give me some tips on how to avoid this happening again. they were embedded subtitles, i did not have to add them separately. does this have to do file size, software glitch, etc? by the way, what is the maximum file size allowable that can be burned on a dvd-r??

    thanks for the help!
     
  2. attar

    attar Senior member

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    When you say the source files had 'embedded' subtitles, do you mean that they were permanent (hard) subtitles or were they subtitles that could be turned on/off?

    Hard subtitles are part of the video itself and will always show on the conversion.
    Switchable subs in an MKV don't show up in DVD Flick.
    In that case, the subs would have to be demuxed from the MKV file and added separately to DVD Flick.


    An empty DVD-R or DVD-RW should both show the same available space.
    4,707,319,808 Bytes – which is the capacity of a blank disk stamped, 4.7 GB.
    While we say that a KiloByte=1000 Bytes, in computer terms, a KIB is 1024 Bytes (2^10)

    4,707,319,808 ÷ 1024, = 4596992
    4596992 ÷ 1024 = 4489.25
    4489.25 ÷ 1024 = 4.38 GIB
    On a PC, explorer will list the capacity in Bytes then the same value in GIB.
    Confusing, ain't it.
    [​IMG]
     
  3. devlinne

    devlinne Member

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    thanks for all these info, attar!!

    i checked and it did turn out that the subtitles on that last vid can be switched on and off, so i guess they weren't permanently embedded... jeez, talk about learning something new everyday.. thank you.. =)

    regarding my second question, what i meant was like how many (or how large?) an .mkv file can i burn on a dvd-r? i mean, do i make sure that the accumulated file size does not go beyond 4.7GB? or should i base on the accumulated length (time) of the video?

    at least, does dvd flick have a pop-up message to warn if the videos about to be burned is larger than the dvd-r capacity??

    thanks again.
     
  4. attar

    attar Senior member

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    The ultimate size of the DVD move files is running time x the bitrate.
    But if you lower the bitrate you also lower the quality.
    A standard blank is rated two hours, but three hours running time is probably acceptable.
    There's a bar on the left side of the pane that turns red when it figures it's too much.


    [​IMG]
     
  5. devlinne

    devlinne Member

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    hey, great! this answers all my concerns.. thanks again, attar.
     

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