TriX Loc: Raleigh, NC

Ron, if you don't want to be corrected, then don't post inaccurate information - you of all people should know better. As for making the subject more complex than needed, I would remind you that you brought up the subject of MFT and repeated the incorrect assertion that fragmentation is an issue in solid state storage - it had already been addressed previously.

Rongnongno Loc: FL

Fragmentation IS AN ISSUE. I am surprised you do not acknowledge that*.

As to the MFT issue, had you paid attention to my reply I acknowledged the error. (Last sentence)

As I said, you can pull wool over the eyes of many, no me. Not that I claim to know more than you, I do not. I have been out of the field for too long to be fully relevant. You likely know more than I as I am at loss now on some issue but HDD and other basic elements? Nope these have the same issues.

-----
* This is why SSD drives slow down over time (this may have changed as my info is about 6 years old)

jim quist Loc: Missouri

I began deleting in the camera a couple of months ago, I did an engagement session on Sunday, and half the images were corrupted. Glad I had double card slots because the other card was okay. Now I know why.

SharpShooter Loc: NorCal

Actually, I heard from a Pro that corruption will happen only in the uFART2 area of a storage device. Something to do with the way the off-gassing occurs there......., wait a minute...., maybe if got it confused a bit. Let me go back into Google and double check to see if I've got that right!?
He did after all FART a few times while we were talking about it!!!
SS

whitewolfowner

Probably because you had done it in the computer at earlier dates; the problem was planted and just waiting to show itself.

TriX Loc: Raleigh, NC

Ron,

I don't think this is really germane to the OPs question, and I would be glad to discuss this via PM rather than take this topic into the weeds, but as you know, you've added me to your "ignore" list since the last time we disagreed on a subject. Note that I did not reciprocate, so feel free to PM me to discuss.

You are correct that fragmentation was an issue on spinning disk. In fact, any non-sequential access of data (requiring more than minimum head movement) could substantially affect HD performance - it's all about how far you need to move the read head to get to the next block/sector/track. Since there are no heads in solid state storage, this obviously isn't an issue, and the HW access time to read block 110FF2 is the same to read block 111AA1 (or whatever). In fact due to wear leveling and TRIM, modern solid state storage is often fragmented, even for large contiguous files. The file system is a different story - it may or may not require more time to read non-contiguous memory locations based on the structure of the file system (think WAFL as an example) and if the FS is doing look-ahead read caching of the next group of blocks, BUT the time is trivial compared to the milliseconds it takes to move the head. What's the take away for the typical user? Defragmenting can improve the performance of HDs as can other file system tuning, but it has no noticeable effect on solid state storage, and in fact, extra erase and write cycles caused by defragmenting aps use up the limited number of erase/write cycles of solid state devices and should be avoided. Can we agree on that?

Regards,
Chris

mwsilvers Loc: Central New Jersey

I've deleted literally thousands of shots on 4 different bodies over the last 10 years with 0 problems. If there is a potential for memory card damage as a result, then its likely a vanishingly small one.

mwsilvers Loc: Central New Jersey

What camera? What card and model?

Jim Bob

Bunch of bull, urban legend, superstitious crap. Of course you can delete in camera without card damage. Do you really think camera companies would design a system to corrupt memory cards? Come on, man.

whitewolfowner

Shows how smart some pros out there are. Did he have his union card and degree handy? LOL

mwsilvers Loc: Central New Jersey

Agree. If the problem occurs even one time and someone posts it on the internet it somehow becomes an absolute truth. After all, if its on the internet it has to be true.

Longshadow Loc: Audubon, PA, United States

I've been deleting in camera for years. No problems.
I wonder if people are not waiting for the process to complete before turning the camera off or performing another function?

Peterff Loc: O'er The Hills and Far Away, in Themyscira.

Ron, thank you for confirming that TriX knows what he is talking about. It was you that said MFT, and you are correct it should be FAT, and it is in general not a level of detail we need to worry about.

Either way. It is safe to delete files in camera. It is also good to reformat in camera periodically.

Rongnongno Loc: FL

Read the last line of my post.

Peterff Loc: O'er The Hills and Far Away, in Themyscira.

Ron I did, and even six years ago it was questionable. Then SSD writes were a lot slower then than they are today. SSD is now seen as the future of I/O in many ways:

See http://www.nersc.gov/users/computational-systems/cori/burst-buffer/burst-buffer/

Cori is the 5th fastest computer in the world according to the newly released TOP500 list. "Burst Buffer" - essentially an SSD layer of storage between the computer and underlying file system - is used to accelerate information access and application performance in the worlds most demanding workloads.

While your comments are understood, you are essentially comparing your 2CV to the next generation Orion spacecraft. The system used to analyze and optimize the design of things like the re-entry vehicles for Orion https://www.nasa.gov/exploration/systems/orion/index.html is called Pleiades, https://www.nas.nasa.gov/hecc/resources/pleiades.html it is currently the 13th most powerful computer system on the TOP500.

I've literally just got back home from a week at SC16 http://sc16.supercomputing.org/ and admittedly my brain is a little full, but looking at where the world is going in the next five years or so from a technology perspective is quite inspiring. What the world's foremost scientists and vendors are doing now and will be doing over the next few years goes a little beyond your footnote.

If you are interested, check out the keynote: https://www.youtube.com/watch?v=s0KzMK_rh_g&feature=youtu.be