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Avid: May 2011 Archives

If you work with multiple user accounts on your editing system, what happens if you forget the password for one of the users?

This becomes a problem is that particular user has left critical files on the desktop.

Even an administrator will not be able to access the other user's desktop.

Fortunately, you can activate the 'super user' or 'root' account.

You'll then be able to retrieve data from that particular user's desktop.
lacie-drive.pngIf you have a PC formatted drive that has been formatted as NTFS, Mac OS X will be able to read from the drive, but it will not be able to write to it.  Fortunately, there is a company that provides affordable software allowing your Mac to read and write to NTFS formatted drives.

The solution in the past has been to format all your drives as FAT 32.  However, that causes a problem if you need to copy large files. Fat 32 has a file size limitation of just under 4GB. 

After the software driver has been installed, you can use the standard Mac OS Disk Utility to format your devices as NTFS.  You can even create NTFS disk images.


The company that offers the software is called Tuxera, and they offer a 15 day trial version of NTFS for Mac.  Software licensing starts at roughly $35.00 for a single license which seems fair.


This is excellent, because I'm sometimes in a situation where a student wants me to copy some media or tutorials to their drive, but it's formatted as NTFS.

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ProRes is becoming a standard file format for professionals who use Final Cut Pro.  The latest version of Final Cut Pro currently offers 5 flavors of ProRes.  The set of Apple ProRes codecs provides all the necessary data rates for most professionals.

ProRes 422 has a data rate of 145 Mbps.

Data Rates for Pro-Res is measured in Mbps. So, what exactly does Mbps mean?  How does it relate to 'real-world' storage requirements for the 'non-geek'?

For starters..... 1 byte equals 8 bits of data.  Hence, that's why everything works with a base of 8 in terms of computer processors.  8 bit processing, 16 bit processing, 32 bit processing, and so on......

Mbps:  stands for 1 Megabit per second, and 1 Megabit is 8,000 bytes.  This also means that 1 MBps (megabyte per second) = 8 mbps (megabits per second). 

Whew! make sense?  Don't worry.

Honestly, talking in bits and bytes starts to make my head spin.  I personally tend to think of things in terms of Gigabytes and Terabytes.  If you're like me, you want to know how many minutes of ProRes storage will fit on your new 500GB, or 1TB drive.

So here it is:  A one terabyte drive will hold roughly 1,000 minutes of ProRes 422 media. Yes, that's pretty easy math!

or 500 Gigs = 500 minutes.  Got it?

However, this calculation is only an approximate.  The amount of storage will also depend on things like the number of audio tracks, and image complexity when it's being encoded into ProRes.

However, if you are curious how to get to that number, here's the math:

savevid_logo.pngFunny thing I ran across today; I was trying to create an archive of my YouTube videos for a friend, and quickly discovered that YouTube will only allow you to download a video as an MP4 at a limit of 2 per hour.  Not very convenient when I want to send him over 125 videos!  Solution?  Savevid.com.  SaveVid is a tool which gives you the ability to download videos from streaming video sites.  You can download videos from YouTube, Google Videos, Metacafe and more in FLV, AVI, MOV, MPG or WMV formats.  It's completely free and easy to use.

Simply paste the URL of the video from your browsers address bar into the green box and click the "download" button.
Note that this is really convenient if you have short little 1-3 minute videos to download.  If you have a 30 minute video, it could take up to 30 minutes to actually download.  My guess on why it takes so long is because it's encoding the actual stream.  Therefore a 15 minute video will not download any faster than 15 minutes.
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This page is a archive of entries in the Avid category from May 2011.

Avid: April 2011 is the previous archive.

Avid: June 2011 is the next archive.

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