NanoFlash CF card Speed test

Compact Flash (CF) card speed test on NanoFlash

  • This is a quick and worthy test to do with your Nano CF cards.
  • We use and recommend using cards much faster than your requirements.It’s always worthwhile having some juice left in the tank.
  • Instruction PDF attached. CF Card speed test-NanoFlash

COMPACT FLASH CARD SPEED TEST ON NANOFLASH
We have a CompactFlash Card Speed Test built into the nanoFlash.
This is in version 1.6.248, and every version since 1.6.226.
This is very easy to use:
1. Set up System|Trigger to “Record Button”
2. Set up Video|Bit Rate and Codec to the speed and codec you wish to use for the test.
3. Insert the card, then format it in the nanoFlash.
4. Supply a video signal to the nanoFlash, HD-SDI or HDMI.
5. To start the test:
a. Press and Hold the Left Arrow Button.
b. Press the Record Button.
c. Release both buttons.
The nanoFlash will start to record, and it will display a new line of info near the top of the
screen.
On the left will be 0%, on the right will be 100%
There will be, starting out, a very thin sliver, near the 0%.
As recording progresses, this sliver will get wider at times, turning into a bar like a
progress bar.
With a card that is fast enough, the wider bar will go back to the sliver (it will get very thin
again).
If a card that is marginal, the bar may get quite wide, but not reach the 100% level before
the card is full.
If the card is too slow, the bar will go all of the way to 100% before the card is full.
This feature allows one to see, the relative amount of data that we have in our First-In,
First-Out Buffer.
If this buffer does not get to 100%, before the card is full, then the card is usable at that
bit-rate.
Ideally, the card should be even faster, so that the First-In, First Out Buffer is almost
empty most of the time. This indicates that the card is fast enough, and has an extra margin
of speed.
Regretfully, there are a lot of counterfeit cards, especially SanDisk cards and a few other
brands have been counterfeited, but this is very rare.
We always recommend purchasing your CompactFlash cards from reputable
sources….LIKE THE CHAPS AT CAMERAWORKS.. 
This test will allow you to test if your cards are up to speed or not, for any given bit-rate.
In general, we do recommend that you stay within the guidelines that we have established
for various cards that we have qualified. Here is a link to our Media page:
Media for nanoFlash | Convergent Design