Thanks for this suggestion, Wilson. I did some testing, and while the
camera we are using doesn't work quite the same as yours, it does seem
like something similar will work.
We're using a Panasonic AC-90. Here's a summary of how it behaves:
1. If the memory card is reformatted, .MTS clips restart their numbering
from 00000.MTS
2. If all clips on the card are deleted via camera menus, same thing --
.MTS clips restart numbering from 00000.MTS
3. If the last recorded clip on the card is NOT deleted, all the other
clips can be deleted via camera menus, and .MTS clip numbering will
continue to increment from the last recorded clip -- so this is a
workable way to avoid duplicate filenames.
Thanks,
--Michael
On 13-01-16 11:36 AM, Wilson Chao wrote:
> On my Panasonic GH2 (which shoots AVCHD) I never re-format; I just "delete
> all" files. My clip names continue to increment, with no duplicates.
> On Jan 16, 2013 8:29 AM, "Michael Brockington" brocking@sfu.ca> wrote:
>
>> **
>>
>>
>> How are folks dealing with consumer AVCHD cameras that don't allow
>> setting custom clip names or prefixes? Every time a memory card is
>> formatted, the camera starts capturing another series of identically
>> named clips -- "00000.MTS", "00001.MTS" etc.
>>
>> If I AMA these clips into Avid and transcode, they appears to retain
>> timecode, but I think the identical clip names have the potential to
>> cause me grief when I try to relink to the original files. (Am I being
>> too paranoid?)
>>
>> Currently I convert such files externally, creating new DNxHD175
>> quicktimes, using Adobe Media Encoder CS5.5.1. These effectively become
>> my new master footage. I batch rename the output quicktimes to add a
>> unique cardname prefix to the filename then AMA the hi-rez quicktimes,
>> and transcode them to lower-rez DNx36 for offline editing. There are a
>> few downsides to this approach:
>> 1. Large DNx175 files clogging up my hard drives
>> 2. Two transcodes instead of one is time-consuming
>> 2. Adobe Media Encoder doesn't appear to pass AVCHD timecode through
>> to its Quicktime outputs in any way that Avid can understand.
>> Discarding that info makes me nervous.
>>
>> Is there a better approach?
>>
>> Is there a utility that would allow renaming of clips within the AVCHD
>> file structure without breaking the structure, for instance?
>>
>> Is there a better software choice for transcoding that would at least
>> preserve timecode from AVCHD files in the transcoded quicktimes?
>>
>> Thanks for any suggestions,
>> --Michael Brockington
>>
>>
>
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