Re: [Avid-L2] Re: File Size limit on Fat32 4GB - one byte?

GUID (GPT) is for drives that are larger than 2TB.


On Tue, Mar 19, 2013 at 3:21 PM, johnrobmoore <bigfish@pacbell.net> wrote:

> **
>
>
> Thanks for the details. I love this list. I only wish all the great tid
> bits of information didn't find an escape path from my brain and I didn't
> need constant reminders like this. What's that phrase, "I've forgotten more
> than you have learned." These days it feels more like, "I've forgotten more
> than I've learned." Everyday a new codec or workflow. It's a challenge to
> keep up with it all.
>
>
> --- In Avid-L2@yahoogroups.com, T Hopkins <hoplist@...> wrote:
> >
> > Caveat! I am speaking in the simplified language that applies to
> formatting with Disk Utility. It is actually far more complex in the
> details, so yes, GUID is not ideal for broad Windows compatibility, but...
> >
> > The GUID partition table is, broadly speaking, the partition table of
> record for most modern OS's, including Windows, Mac, and other Unix based
> (Linux). If you format a Windows 7+ drive internally, it will use GUID.
> Macs used GUID before Windows did, but GUID has been supported in Windows
> since Vista I think. A GUID partition can be formatted NTFS or HFS+ (and
> others).
> >
> > However, since GUID support is sketchy in older versions of Windows
> (notably XP), the legacy "MBR" is a better choice for external drives
> needing broad compatibility. MBR is the only "correct" partition map for
> FAT32 drives.
> >
> > The options can be quite confusing to sort out. I focus on the "ideal"
> combinations:
> >
> > Mac OSX only: Mac OS Extended (HFS+) with GUID partition
> > Windows only, internal: NTFS with GUID partition. However, you would
> partition such as drive on the Windows machine and Windows options are
> described differently, especially for internals.
> > Windows external for wide compatibility and large files: NTFS with MBR
> partition
> > Maximum compatibility with all systems, 4GB limit: MS-DOS (FAT32) with
> MBR partition
> >
> > Cheers,
> > tod
> >
> > On Mar 19, 2013, at 4:59 PM, johnrobmoore wrote:
> >
> > > "I would use GUID on any drive dedicated to a Windows machine."
> > >
> > > Just want to make sure I'm reading this correctly. You use GUID for a
> Windows machine? In reading your post and from my own experience I thought
> GUID was more of a Mac thing for a bootable drive or something like that. I
> do remember about 5 years ago when something about the GUID formatting
> changed or had another option which caused a little issue on a Terrablock
> for a while. That was caused by the default behavior of the mac clients
> when creating mac volumes on the Terrablock.
> > >
> > > --- In Avid-L2@yahoogroups.com, T Hopkins <hoplist@> wrote:
> > > >
> > > > "Erase" reformats the existing partition but not all formats and
> partitions are compatible. Erase was originally intended to quickly
> reformat a drive with the SAME or similar format (back when we did not have
> so many!). It will allow you to make bad selections. It shouldn't, but it
> will.
> > > >
> > > > Frankly, I never "Erase." I consider this a legacy function from the
> days of floppies. I always use Partition and I always check the boot record
> type (Partition, under "Options") as Disk Utility does not always set this
> correctly either even when creating a new partition. I use MBR (Master Boot
> Record) for NTFS partitions and GUID for Mac HFS+ partitions. FAT32 (aka
> "MS DOS") must be MBR. Modern Windows systems and NTFS are compatible with
> GUID but MBR is much older and compatible with pretty much everything and
> that is generally my goal. I would use GUID on any drive dedicated to a
> Windows machine.
> > > >
> > > > Cheers,
> > > > tod
> > > >
> > > > On Mar 18, 2013, at 4:53 PM, johnrobmoore wrote:
> > > >
> > > > > Yeah when I woke up this morning I remembered that Avid spans
> clips and that's why I haven't been burned. Curious what is the difference
> between erasing a drive, in this case a flash drive, and partitioning? Is
> it a matter of speed or recover ability?
> > > > >
> > > > > --- In Avid-L2@yahoogroups.com, T Hopkins <hoplist@> wrote:
> > > > > >
> > > > > > Avid, FCP, Cameras and other apps and devices that have to deal
> with FAT32 generally break files into chunks with "spanning" information.
> Avid's routinely did (do?) this when digitizing. Every camera I've dealt
> with so far limits file chunks to 4GB for this reason. So FAT32 is still
> the ideal choice "in the field."
> > > > > >
> > > > > > But the advice you've received on formats is solid.
> > > > > >
> > > > > > ExFAT is great if you are transferring only between new systems
> (Win7+ and OS10.5+), but there are still way too many 10.4 and Win XP
> systems for this to be a great choice for "blind" transfers.
> > > > > >
> > > > > > NTFS is better since there is deeper read support on Macs and
> pretty much universal support on Windows. The advantage of Paragon and
> Tuxera over "3G" is speed, but I've installed 3G on many, many machines and
> have never had a problem. I also use Paragon and it is faster. 3G sometimes
> has issues properly dismounting a drive. This has not caused a data
> problem, but simply causes the next machine to report the drive as
> improperly dismounted.
> > > > > >
> > > > > > Also, but very careful when formatting using Disk Utility. When
> formatting NTFS, you must partition using MBR or GUID and NOT Apple
> Partition. Disk Utility will allow Apple Partition, but this creates a
> bastard format that is unusable on many machines. I prefer MBR as it is the
> older and more widely supported and better understood partition map.
> > > > > >
> > > > > > Do NOT "erase" a drive to change formats. Always create a new
> partition to change formats.
> > > > > >
> > > > > > Cheers,
> > > > > > tod
> > > > > >
> > > > > >
> > > > > > On Mar 18, 2013, at 2:38 AM, John Moore wrote:
> > > > > >
> > > > > > > Okay I've known about the 4 gig limit for various exports in
> Avid and with fat 32 the size limit is 4 GB minus 1 byte. I'm experiencing
> this limit with a usb jump drive with 16 GB capacity trying to copy a 7.3GB
> QT movie. If I reformat EXFat it will copy. Okay I get this but it seems
> like everyone always says format cross platform media drives etc.... to
> Fat-32 to bounce between Macs and PCs. What happens in Avid with a media
> drive formatted Fat 32 and a media file in excess of 4 GB? What if I do a
> video mixdown to a Fat 32 of an hour show? I'm usually running Mac OS
> extended volumes on my Mac systems but it would seem over the years I would
> have hit a 4 GB road block at some point on Avid, other the the omf/aff
> limitations that can now be bypassed. Not having a problem but I can't
> believe I've never been burned by this with external drives.
> > > > > > >
> > > > > > > John Moore
> > > > > > >
> > > > > > > Barking Trout Productions
> > > > > > >
> > > > > > > Studio City, CA
> > > > > > >
> > > > > > > bigfish@
> > > > > > >
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