Five Pack 512MB CompactFlash Memory Card Digital Camera Card Industrial Grade Card

Works as advertised

Amazon is thr only place online that carried these for a great price

On 1in a life trip and the cards keep having error with formating

Five Pack 512MB CompactFlash Memory Card Digital Camera Card Industrial Grade CardThese feel legit and feel solid. I put them in my Nikon D800 camera, formatted them and started to test them. I could only get 11 shots max on each card. I tried them all, each one gave me a max of 11 shots in RAW format at 36 megapixels. So, it was my fault for not paying enough attention to the small storage capacity. They are fine for what they are, just not for my needs. Just pay more attention to the storage capacity than I did and I'm sure you will be happy. My fault for not thinking it through correctly.

Thought I was getting quite a bit of space with these but boy was I wrong. Held about 3 photos.

When these first arrived, my son made fun of me because the memory was so low. I explained to him that most first generation mirrored, SLR, digital cameras have a microprocessor that can't understand a Compact Flash disc of greater than 512MB. Because of familiarity of features and speed of taking photos I still use my old Sony Alpha Two camera. It takes high enough resolution photos for most of my purposes. I really don't want or need a high-resolution camera that consumes 400MB of memory with every picture. Also, high-capacity Compact Flash Memory cards like 64GB teach us a bad habit. It is not uncommon for people on vacation to take all their photos on a single CF card. Their entire vacation with over 1000 photos all on a single card. What happens if that camera is damaged, lost or stolen, they not only lose the camera but the photos of the entire vacation. When on vacation very few people take time out to copy their CF card to a backup source such as a laptop.Having smaller CF cards like 512 MB gets you in the habit of changing the cards. Now instead of everything being on one CF card you now have three or four CF cards that contain your vacation photos. If the camera gets damaged or stolen, you still have three CF cards full of photos. The older cameras also function faster with lower capacity CF cards, and they will give you an accurate count of how many photos you have taken and how many more you can take on the same card. I have learned the hard way that those high-capacity CF cards are easily corrupted by magnetic fields, airport metal detectors and electric busses. Yes, you read that correctly, if you sit directly over the rear axle of an electric buss (inner-city public transportation) your CF card will be partially corrupted by the huge EMF produced by the electric motors on the rear axles. For some reason unknown to me, the lower capacity CF cards such as the 512MB are not easily corrupted by external EMF.

In my area you can't find these memory cards anymore. So when I saw them online and they gave me a deal five for a low price, I jumped on it I only use it for one application and that's my Looper DigiTech foot pedal. I filled up all my other cards and now I got some new ones to add new guitar sounds to and music. I have used these compact flashes before same brand but they cost a lot more when I bought them a long time ago. So this is really a good price I'm happy with them the quality is always nice on this brand.

I got these 512MB CF cards to use in old computers that generally have ATA/33 or slower controllers, although for testing purposes I did try all of them in a newer computer that also supports ATA/100 UDMA-5, SWDMA, and MWDMA-2. All five cards have matching stickers, but three of them identify as one model, and two as a different model (both in Windows when in a card reader, and in the BIOS when connected to an IDE port with an adapter). Points off for consistency. DMA mode support is different between the two types, and the transfer speeds differ by around 3:2. The faster ones top out at about 18MB/s read, while the slower ones are closer to 12MB/s. Both of which are far from the 50MB/s claimed, although that was listed as an "up to" specification so they covered themselves there. Write speeds and random-access speeds are of course slower. All five successfully passed a capacity verification check.