I don't know if this could be made useful but since it's free...
Microsoft makes a free application called Synctoy that can be asked to
run a checksum on each file in a pair of folders and make sure they
match. The application does not display the checksums it just uses them
to sync the folders and can be asked to do various things when it finds
discrepancies. On the plus side, it's free. --J.B.
Jeff Hedberg jeff@unioneditorial.com [Avid-L2] wrote:
>
>
> You could choose the folder containing all the folders as a 'source'
> and then create a new folder on the other drive as the destination.
> However, in seeing your other comments - this is NOT going to give you
> a list of all the files with a checksum for each one (like you
> described in a different post). I agree that something like 'shotput'
> that Bogdan mentioned is what the studio is probably expecting you to use.
>
> Rsync is great for your own peace of mind, but there's no report of
> "this file has this checksum" - and it sounds like you need that feature.
>
> After finding out the hard way that the MacOS Finder will sometimes
> just skip files in folders as I'm moving DPX sequences around, I now
> rely on rsync any time I deal with them. (I think the Finder freaks
> out when there are more than 1000 files in a folder).
>
> Jeff
>
>
> ------------------
> Jeff Hedberg
>
> Director of Operations
> Union Editorial
> 575 Broadway,6th floor
> New York, NY 10012
>
>> On Dec 7, 2016, at 6:51 PM, bigfish@pacbell.net
>> <mailto:bigfish@pacbell.net> [Avid-L2] <Avid-L2@yahoogroups.com
>> <mailto:Avid-L2@yahoogroups.com>> wrote:
>>
>> So I played with the front end software you suggested and I seem to
>> have copied a file. Now I have a raid tower with a folder containing
>> all the DPX files for my show. The folder is approx 4 TB of dpx files
>> numbers sequentially. How would I use arSync to copy this folder to
>> another drive? Would I have to .zip the folder and then add that as
>> the source in arSync then choose a destination location? Would I
>> have to create a target folder on the destination drive or could I
>> just choose the drive and have the source file(s) end up on the
>> surface of the drive? The thought of having to select all the DPX
>> files in the folder seem like a pain hence why I think it was
>> suggested in this thread to .zip a folder unless I misunderstood.
>>
>>
>>
>> ---InAvid-L2@yahoogroups.com <mailto:Avid-L2@yahoogroups.com>,
>> <jeff@...> wrote :
>>
>> Hi John,
>> I've solved this in the past by using the command line to copy the
>> files using the command 'rsync' that has an option to checksum every
>> file after the copy confirming that it is the same on both sides.
>>
>> I definitely don't consider myself a rocket scientist, but if you
>> want to stay out of the command line, perhaps you could try a program
>> called 'arRsync' (which is a graphical front end for rsync). I just
>> downloaded it from
>> here:https://sourceforge.net/projects/arrsync/There is an 'options'
>> pane where you can change the default of 'Modification Date and Size
>> Check' to 'Always Checksum'. This should give you what you are after.
>> You'll notice the copies take longer than normal, but that is your
>> checksum doing its thing!
>>
>> Although, after re-reading... are you looking for a tool that will
>> give you a checksum for each individual DPX file? I have NOT had to
>> deliver like that yet, and will admit I'm not entirely sure how I'd
>> attempt that. I know when I download large individual files I can get
>> and MD5 checksum to confirm that I have the whole thing, but I can't
>> imagine doing that for each DPX file. Do they let you .zip a folder's
>> worth of files and give you checksum on that instead?
>>
>> Not sure if I've been helpful or not - but I'm sending it anyways!
>>
>> Jeff
>>
>> ------------------
>> Jeff Hedberg
>>
>> Director of Operations
>> Union Editorial
>> 575 Broadway,6th floor
>> New York, NY 10012
>>
>>> On Dec 7, 2016, at 2:13 PM, John Moorebigfish@...
>>> <mailto:bigfish@...>[Avid-L2] <Avid-L2@yahoogroups.com
>>> <mailto:Avid-L2@yahoogroups.com>> wrote:
>>>
>>>
>>> Part of a network delivery is all kinds of archival masters in
>>> DPX so the files are huge. They also request a check sum. I
>>> understand just the basics that a check sum will assure the data
>>> was copied correctly. I know the DITs have used Silverlight
>>> software to provide us with the field media and that software
>>> offers check sum type stuff and other things.
>>>
>>> Can anyone suggest a mac compatible Check Sum software that
>>> doesn't take a rocket scientist to set up? I have seen a friend
>>> go to the mac terminal and run a check sum there where he could
>>> confirm a .mov file was identical to the original even if the
>>> file name had been changed. I think the network wants something
>>> more sophisticated than that.
>>>
>>> Having never dealt with this I am just starting to research our
>>> options. Any experience in this area will be appreciated.
>>> John Moore Barking Trout Productions Studio City, CAbigfish@...
>>> <mailto:bigfish@...>
>>>
>>
>>
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