New E Cards: A Warning re: Life Expectancy
- Thread starter nedcam
- Start date
Postmaster
Dark Side of the Camera
I bet that in 5 years most cameras use cheap - of the shelf - 500 GB solid state disks.
Red is doing it already(probably not so cheap and not so of the shelf) , there is also a solution for Firestore, ARRI is looking in to it and so do others.
It´s a natural evolution in my book.
Frank
Red is doing it already(probably not so cheap and not so of the shelf) , there is also a solution for Firestore, ARRI is looking in to it and so do others.
It´s a natural evolution in my book.
Frank
videomagician
Well-known member
I heard 10/16 as well - but it didn't happen.
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How do you clear off your P2 cards? I'm wondering if formatting the card vs marking and deleting the clips would have an impact on E-series lifespan?
Say I have a card that's 20% full, I copy the clips off, and format the card in the camera. Does anyone know if formatting writes to every cell, or overwrite a table of contents? (something similar to a Master File Table in Windows file systems)
Taking that idea even further, Does the MFT equivalent stay in the same physical storage area? That would seem to be the first bits to wear out.
That said, I think the E-Series are great for anyone who doesn't have a pool of people using the cards. An individual operator would have to be really busy to wear one of these out. In 5 years the cards will be cheaper and higher capacity. The only downside (for consumers) is resale value, as I don't think there's any way to determine R/W cycles to a card.
Some of the work I've read about carbon nanotubes and detecting electron spin to determine on/off state, would increase storage density by 10x, R/W access will dramatically increase, and because nothing is written (only electron orientation is changed), theoretically they never wear out.
Once this technology works out the manufacturing issues, we could literally be looking at 1-10Tb cards.
Say I have a card that's 20% full, I copy the clips off, and format the card in the camera. Does anyone know if formatting writes to every cell, or overwrite a table of contents? (something similar to a Master File Table in Windows file systems)
Taking that idea even further, Does the MFT equivalent stay in the same physical storage area? That would seem to be the first bits to wear out.
That said, I think the E-Series are great for anyone who doesn't have a pool of people using the cards. An individual operator would have to be really busy to wear one of these out. In 5 years the cards will be cheaper and higher capacity. The only downside (for consumers) is resale value, as I don't think there's any way to determine R/W cycles to a card.
Some of the work I've read about carbon nanotubes and detecting electron spin to determine on/off state, would increase storage density by 10x, R/W access will dramatically increase, and because nothing is written (only electron orientation is changed), theoretically they never wear out.
Once this technology works out the manufacturing issues, we could literally be looking at 1-10Tb cards.
mikkowilson
Steadi-Guru
The P2 cards keep track of this and load balance automatically to wear down the bits equally across multiple sessions.
Example:
You first record 30% of the card. Then you Delete it all.
Then you record 20% of the card. The card will use the space between 31% and 50% on the card for that data. Etc..
Over time, the wear on the card is equally balanced. This tracking & processing takes place internally on the card.
This is one of the (many) things that makes P2 cards far more than 'dumb memory' like SD cards.
The cards keep track of this too. I believe that information is viewable in some of the P2 management programs (like the current version of P2 viewer for example). P2 equipment (cameras, decks, etc..) will also pop up a warning to the operator as the cards near the end of their life expectancy so you know it's time to replace the card. Even as the card passes the end of it's lifespan, the cameras will continue to work with them, while of course warning you of the age of the card.
- Mikko
Cees Mutsaers
Veteran
If you download the "p2 status logger" application from the Panasonic site you can get info about the card usage.