Sending DDP (is it strictly necessary to zip it?)

[SASMastering]

Thats the question really.

[lowland]

AFAIK it's not 'strictly necessary' to zip DDPs, but I usually do with internet deliveries as it's an extra file corruption check and some manufacturers request it.

And, of course, it'll make your DDP folder a little smaller, so if your internet connection is as slow as mine it's an added bonus.

[Red Mastering]

exactly - try .RAR it has a checksum algorithm implemented,
so it's not really about a size but mostly about security

[SASMastering]

Thanks chaps. It is once in a blue moon here tbh 99.5pct pre-master CD-R still required usually.

[PBM]

Originally Posted by SASMastering

Thats the question really.

It certainly is if you live out in the sticks (Norfolk is even further out than `Lowland' Essex) and so are lumbered with `rural broadband' speeds ...

I always rar for speed and safety of delivery.

Cheers,

Eric

[Red Mastering]

Originally Posted by SASMastering

Thanks chaps. It is once in a blue moon here tbh 99.5pct pre-master CD-R still required usually.

or just .wav or .aiff 16/44.1 file if it's a single song

[Red Mastering]

Originally Posted by PBM

It certainly is if you live out in the sticks (Norfolk is even further out than `Lowland' Essex) and so are lumbered with `rural broadband' speeds ...

I always rar for speed and safety of delivery.

Cheers,

Eric

I will happily swap my London's flat with your 'slow broadband' place in country side Eric
and I have super fast net

[MASSIVE Master]

For clarity -- No, it's certainly not "necessary" to ZIP (or RAR, etc.) the files together --

HOWEVER -- It's most certainly an added level of safety and security during electronic transfer. If I'm sending over the 'net, it's going to be ZIP'd because the client / plant / whoever can download that one file and know it's all there. If I'm sending a physical copy (CD/DVD/Ex8/etc.), then no additional "wrapping" is necessary, as it's already "wrapped up" on that single container.

[da goose]

I always RAR the files for an extra error check even though there is an md5 checksum, you'll never know.
A ddp is not just one file (6 or 7 iirc?) and so it's also easier for transferring when it's only one compressed file.

If you are working for universal then you need to deliver the ddp as a non compressed SITX file which you can make with stuffit. They seem to have tested various compression methodes and sitx had the least 'problems' with unpacking and errors.

[Cellotron]

There are a few plants that do specifically ask that DDP files be sent zipped together. A few will also require having an MD5 checksum included.

Zip compression is worth doing simply to make sure the files are less at risk of being corrupted during upload as well.

Best regards,
Steve Berson

[da goose]

Just wondering about the md5 checksum. Does it check ALL files that make the ddp or just the biggest dat files?

[SASMastering]

I would like to think the MD5 checksum includes the integrity of the PQ codes, not much use if they are corrupted. It was an E.P. so .wav did not cut the mustard. Thanks

[lowland]

Originally Posted by da goose

Just wondering about the md5 checksum. Does it check ALL files that make the ddp or just the biggest dat files?

When I run the MD5 that SADiE creates I can see it checking all the files; I imagine that would be true for other applications as well.

[da goose]

Originally Posted by lowland

When I run the MD5 that SADiE creates I can see it checking all the files; I imagine that would be true for other applications as well.

OK, thanks! i was just wondering and it wouldn't make sense indeed if it just checked the dat file but for instance skipped the cd text file.

[William Bowden]

Originally Posted by Cellotron

There are a few plants that do specifically ask that DDP files be sent zipped together. A few will also require having an MD5 checksum included.

Zip compression is worth doing simply to make sure the files are less at risk of being corrupted during upload as well.

Best regards,
Steve Berson

This has been my experience as well, the only problems I ever had were with unzipped files and people saying that couldn't 'read' them.

The King

[dcollins]

Originally Posted by Cellotron

There are a few plants that do specifically ask that DDP files be sent zipped together. A few will also require having an MD5 checksum included.

Zip compression is worth doing simply to make sure the files are less at risk of being corrupted during upload as well.

There is no reason not to .zip the files.........

I'd say the MD5 is actually superfluous, as the archive won't open if it's been corrupted somehow, anyway.



DC

[Cellotron]

Originally Posted by dcollins

There is no reason not to .zip the files.........

I'd say the MD5 is actually superfluous, as the archive won't open if it's been corrupted somehow, anyway.



DC

Probably, but there is definitely one plant in the UK that I uploaded to a few months ago (can't remember who it was) that did in fact require an MD5 to be included. Luckily Sonoris DDP Creator includes this as a built in and easy to use option.

Best regards,
Steve Berson

[lowland]

Originally Posted by Cellotron

Probably, but there is definitely one plant in the UK that I uploaded to a few months ago (can't remember who it was) that did in fact require an MD5 to be included. Luckily Sonoris DDP Creator includes this as a built in and easy to use option.

Best regards,
Steve Berson

I always do an MD5 as the SADiE checkbox for it is 'on' by default here. It does no harm and avoids getting caught the way Steve describes. I've not yet come across a plant insisting on no MD5!

Also a useful cue when I use Filezilla is checking the number of bytes sent vs. received by the server - never have corruption with the same number, invariably have when it's different, so a good early warning.

[lucey]

Usually zip ... but, WEA/Nonesuch requested the files non zipped recently ... odd. First time for everything I guess.