Archived from groups: alt.video.ptv.tivo (
More info?)
"shortspark" <martyi@webtv.net> wrote in message news:2273-42529110-386@storefull-3134.bay.webtv.net...
> Tivo supports CC but does not provide it. That is to say that tivo uses
> the television set's decoder to display the captions both in real time
> and those recorded on the hard drive. If you have an ancient tv that
> does not decode the caption stream you will not see captions on tivo, at
> least on directivo (I don't know about series two or the HD tivo
> models).
>
> Here is the problem with this. Let us say you record a program to tivo.
> You play it back and it contains the captions, just like you were
> watching it in real time, because tivo captures the caption stream and
> the tv in turn decodes it. However, let us say you watch the show and
> like it and wish to now play it back and save the program to a dvd
> recorder. There will be no captions shown on the dvd disk unless the
> dvd recorder has a CC decoder built in.
>
> Going from the tivo (which does not have a decoder) to a dvd recorder
> which also may not have a decoder depending on the model, will result in
> no captions on the recorded dvd disk. This is so because there is no
> decoder anywhere along the line to place the captions on the disk. Some
> dvd recorders may have their own CC decoder but I know my lite-on 5005
> does not.
>
> The only way I can record directv programs with captions to my dvd
> recorder is by by-passing the directivo and using my directv Zenith HD
> 520 STB. The Zenith directv box does have a built in decoder so the
> captions appear on the screen whether or not the captions are enabled on
> the tv. In other words, the Zenith receiver (and Samsung 360STB for
> that matter) decodes captions itself, independent of the tv.
>
> When recording programs from directv receivers such as the Zenith and
> Samsung HD STBs, unlike tivo, the captions actually become part of the
> picture (such as foreign subtitles are part of the picture and are not a
> "stream" needing decoding). As such, the down side to this is that once
> you record the program to the disk, you will forever have the captions
> appear as they are part of the picture now and there is no way to
> disable them.
>
> What all this is saying is that if you wish to view programs on tivo,
> live or recorded, and your tv has a CC decoder, you will have no problem
> with tivo. However, if you wish to save to disk a recorded tivo
> program, you had better make sure the dvd recorder you buy has a decoder
> built in.
>
Your Liteon 5005 DVD recorder doesn't have a CC decoder and no other
DVD recorder has one either.
A DVD recorder doesn't require a CC decoder. All decoding is done in the
display device. The CC data is contained in the top few scan lines of video data,
and some DVD recorders may not properly record those lines. This causes
loss of CC data when the DVD is written. Some DVD recorders are designed
to properly include CC data in the video scan lines when writing, but those
products may cost more.
Language subtitles in films are unrelated to closed captioning.