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Posted by Ray K on 05/29/07 17:55
Jeff wrote:
> Ray K <raykosXXX@optonline.net> wrote in
> news:465C1C6E.9060703@optonline.net:
>
>> Jeff wrote:
>>
>>> <snip>
>>>
>>> The source of your problem is right in your first sentence. You
>>> cannot simply burn wma files to a disc to make a DVD. They must
>>> first be transcoded to VOB files that meet certains standards for
>>> frame size and audio/video bit rates. The first 90% of the three
>>> hours was transcoding and the remainder was the actual burning of the
>>> converted files.
>> Jeff,
>>
>> You've hit the nail on the head. In following the suggestions of the
>> other guys, I updated my burner firmware, the Roxio suite to 8.05, and
>> uninstalled the secondary IDE channel. I didn't try the registry
>> changes to force DMA because I'm not using XP.
>>
>> (For the record, before uninstalling the IDE channel, the settings for
>> both devices on both channels were as follows: Device type: Auto
>> Detection (grayed); Transfer Mode: DMA if available; Current Transfer
>> Mode: Ultra DMA (grayed). After rebooting, the secondary channel
>> returned with the Transfer Mode defaulted to PIO only; I set it to DMA
>> if available.)
>>
>> I started burning with all the above changes. Still the snail's pace.
>> As I looked closer at the progress display, I saw that what's taking
>> so long is an encoding process. So far, it has taken 20 minutes to
>> encode 7% of the first 20-minute movie. None of the lights on the
>> burner are on during this phase, so the actual burning probably will
>> occur at high speed once the encoding finally ends.
>>
>> While this was going on, I returned to this NG and read Jeff's post.
>> It's clear that's he has identified the real problem.
>>
>> Now the question becomes, how to speed the conversion to VOB? Are
>> there specialty programs that could do it faster than what's included
>> with the Roxio program?
>>
>> While it's moot at this point, in response to def456 I am using Maxell
>> 4.7GB DVD-R 8X blanks. Dave, the wonderful links you thoughtfully
>> provided are mainly geared to XP, so as noted above I didn't try
>> registry changes.
>>
>> Thanks to all.
>>
>> Ray
>>
>>
>>
>
> I regularly use ConvertXtoDVD to transcode full length movies in about an
> hour. This is with a 2.6 GHz processor so on yours it might be a little
> longer. The real load on the PC when transcoding is in hard disk I/O so
> the processor speed doesn't play a big part in the time.
>
I just completed some timing tests. The project consisted simply of the
original two 20-minute wmv files, each about 165 MB, plus a third
20-minute, 165-MB wmv file that completed the series. Start-to-finish
time was 5 hours, 44 minutes. The actual DVD burn time was only 8
minutes, which is about 7.5x (60 minutes viewing time burned in 8
minutes), close to the 8x rated speed of the Maxell DVD-R blank. The
first 5 hours, 36 minutes were used, in this order: encoding movie 1,
then 2, then 3, and finally encoding the menu, which itself took at
least 30 minutes.
The 8 minutes to burn the DVD was a mere 2.3 percent of the 344-minute
start-to-finish time.
I wonder how fast things would go if I had 6GB of RAM that I could use
as an electronic "hard" drive to hold the original wmv files as well as
the newly encoded ones.
Thanks, again, to all.
Ray
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