It seemed like I received the memory cards almost before finishing the order. It was unbelievably fast so I'm very happy with the service and the cards worked just fine although they seemed to get a little stuck the first time I put them into my Canon XSI. Still they've worked great.

Good Card for the money, works great with Vista Ready Boost. Tested correctly on first try. Worth the money.

Its a fine SD card but it wont get read in my 6-1 card reader, I know its not the reader since my 2 gb kensington SD card works fine in it.

Luckily I can still connect it threw my Canon XSI

i have a new Canon XSI and i have bought this product i have shot about a 1000 shots (for 4 days) in the desert and i didn't have access to a computer then when i went home i have had lost the first ~100 shots the computer and camera were unable to view those images...

i formatted the card with the camera once and with my reader once and i have the same result

I bought this SD card for 2 applications:

1) I am a musician who records himself and his students practicing with a "mere" digital pocket camera (both a Panasonic Lumix DMC-TZ4K 8.1MP Digital Camera with 10x Wide Angle MEGA Optical Image Stabilized Zoom (Black) and a Canon PowerShot A720IS 8MP Digital Camera with 6x Optical Image Stabilized Zoom, depending on which movie format I need -- this card works great in both) set on "movie" mode. I've reached the point where I've needed more storage time than I had on the high-performance/speed 2GB Kingston and SanDisk cards I was using, and this card has performed remarkably well.

2) I also make audio-only recordings of myself, as well as rehearsals and performances of larger ensembles I play with on my Zoom H2 Handy Portable Stereo Recorder, and this card should provide about 8-hours of recording time at CD quality. I tend to record at higher quality levels (up to 96kHz, 24-bit), so I need more recording space than most. The device (advertised to accept up to 16GB SD cards) takes a while to recognize this card and to format it, but it seems to work pretty well after that.

I was VERY impressed with this card, and the price is almost so low it's scary -- but I believe it's worth it, at least for recording video. As for audio....

The biggest negative is that once it has a bunch of data on it, it takes a VERY long time to format (also, the H2 can't recognize it -- not even to reformat for its own use -- if it's been formatted for the Canon, and I haven't had this problem with other SD cards). I had it about 1/2 full with .avi files, and it took 15 MINUTES (!!!) to format on a Core2 Quad Processor (Q6600) with 4 GB of RAM through the computer's media port slots (connected via an internal USB bus). Most SD cards of 2GB-4GB take only a matter of SECONDS to format this way; this card formatted in seconds also the FIRST time, but subsequent attempts have taken MUCH longer, as described above.

This has me a bit nervous as to what's going on. Is the computer having to fix data errors on the card along the way? What's the holdup? I'm concerned enough that I won't be using this card to record my more important gigs -- it will remain in my case as an emergency backup.

Recommended with hesitation....