Best Sony A100 Memory Card

By Nathaniel Stephan
Last Updated: April 15, 2020
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Best Sony CF Memory Cards

The Sony A100 has only one CompactFlash memory card slot that works with cards that are 32GB or smaller in capacity. An error will occur if you try to use a CF card with a bigger storage capacity.

Maximum memory card capacity is limited because the Sony A100 uses the FAT32 file system.

New memory cards are significantly larger than what the Sony A100 is limited to. Due to storage capacity being limited, the only specs that will make an apparent difference between CF cards are transfer speeds. The faster the transfer speed a memory card has, the less time you will have to wait for files to transfer.

Estimated time needed to transfer 32GB:

  • 160MB/s - 3 minutes 45 seconds
  • 120MB/s - 5 minutes
  • 50MB/s - 12 minutes

This is my recommendation for the best CF card for the Sony A100:

SanDisk Extreme Pro CompactFlash Card 32GB

SanDisk Extreme 32GB CF Card

  • Read speeds up to 120MB/s.
  • Write speeds up to 85MB/s.
  • Water, x-ray, & shock proof.

Once you have a memory card, expand your creativity with an additional lens. Check out the 6 Best Sony A100 lenses.

Best CF Cards

The best value CF memory card is going to be either 16GB or 32GB. Larger or smaller cards are going to offer a worse value.

A pro card is not going to add a large amount to the price. Having a fast card will remove the need to upgrade the card if you upgrade your camera.

Recommended CF Cards

Lexar Professional CompactFlash Card 1066X 32GB

Lexar Professional 1066x 32GB CompactFlash Card

  • Transfer speeds up to 160MB/s.
  • Video Performance Guarantee sepc VPG 65.
  • Limited lifetime warranty.
SanDisk Extreme CompactFlash card 32gb

SanDisk Extreme 32GB Compact Flash Card

  • Read speeds up to 120MB/s.
  • Write speeds up to 85MB/s.
  • Sustained data recording of 20MB/s.
  • Water, x-ray, & shockproof.
SanDisk Ultra CompactFlash Card 16gb

SanDisk Ultra 16GB CompactFlash Card

  • Speeds up to 50MB/s.
  • Excellent reliability and value.
  • Ideal for mid-range DSLRs.

Compact Flash Card Types

CF cards come in two different sizes. The cards are known as Type I or Type II.

The difference between the types of cards is how thick they are. The length and width of the cards are identical.

  • Type I - 3.3mm thick
  • Type II - 5mm thick

The Type II spec were thicker to allow the use of Microdrives in the Sony A100. A Microdrive was a tiny mechanical harddrive, the size of a CF card.

When CF cards were first introduced they had high prices and very limited capacities. Microdrives made it possible to get large amounts of storage.

Microdrives are no longer being produced. Because they were mechanical, they often failed. So you cannot even find them used.

SD to Compact Flash card adapters also take advantage of Type II sized slots. The adapters allow you to use SD or Micro SD cards in a CF slot.

Memory Card Reader

UGreen 4-in-1 Card Reader
There's a bright blue LED that bothered me. It is now covered in gaff tape.

The UGreen 4-in-1 memory card reader supports four common types of memory cards. These cover all card types camera manufacturers use in all but their latest professional-level cameras.

The UGREEN memory card reader has a USB 3.0 connection. Transfer speeds over USB 3.0 will have faster transfer rates than what the Sony A100 can achieve using the USB transfer mode.

There are plenty of positive customer reviews for the card reader, which I agree with. I would recommend it because the reader has been recognized by all the computers (Windows, Mac, and Linux) I have plugged it into.

The cable stops card slots from being blocked by other devices or accessories that are plugged into another USB or neighboring port.

When I searched for a card reader that would be better for travel, I needed to go through the return process with multiple orders. I came across the most commonly seen problem mentioned in customer reviews, the memory card readers would not work with my computer.

The UGREEN card reader supports the following card formats:

  • CompactFlash Cards
  • SD, SDHC, & SDXC Cards (UHS-I supported)
  • Memory Stick (MS), MS Pro, MS PRO-HG, & MS XC DUO
  • MicroSD, Micro SDHC, & Micro SDXC Cards

Avoiding Card Read Errors

A frequent errors with cameras that use Compact Flash memory cards are bent card slot pins. When a pin is bent, you might see a 'unable to use card' error.

To avoid damaging pins, do not force a CF memory card into the Sony A100. The extra space for a Type II card allows a CF memory card to be misaligned.

If the compact flash card will not effortlessly slide into the slot, take it out and check the alignment of the memory card. Also, check to see if the memory card is damaged.

If everything looks undamaged, carefully align the CF card and try again.

Related Cameras

The best Sony A100 memory card can also be used in the following cameras:

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