Memory Cards (SD or CF) ?

quote:Originally posted by aymansousa
Power: which type consume less battery ?

It doesn't really depend on whether it's a CF or an SD; more on the particular brand/type. In general, SD cards consume a BIT less power than CF cards, but the impact of the difference is barely visible on the battery life of your device, particularly if you only use your cards for reading, not (constantly, in streaming mode) writing to. In the worst-case, most power-hungry scenario (running an app that constantly writes to the card; for example, PDAudio or NoteM (http://www.smartphonemag.com/newsl_jkwg/JKWG_02-22-05.htm ) etc.), you'll only encounter about 5-10% decrease in the total battery life of your device with more power-hungry cards. This means even the (power consumption-wise) worst cards won't have a very bad impact on your battery life - you don't even need to pay attention to this when shopping for a card.

See for examplehttp://www.pocketpcthoughts.com/forums/viewtopic.php?t=35637 and my battery consumption measurements athttp://menneisyys.freeweb.hu/CARDS .

quote:When buying must I give interest to the card's speed(reading & writing), or it's(even the slowest one) is enough for a good performance.(please consider that the card will be 1GB).

Even the slowest card will be perfectly O.K. unless

1, you plan to, for example, relocate your Pocket Internet Explorer cache to the card. With a slow card, this will have terrible consequences (greatly reduced speed - even by an order of magnitude) - see for example my benchmarks athttp://www.pocketpcthoughts.com/forums/viewtopic.php?t=36376 on this.

2, you want to write hundreds of Megabytes into your card very frequently in a high-speed, USB2 desktop card writer (for example, you want to watch a movie a day on your PDA). Then, the speed of your card will be very important - after all, it's better to have a card that can be written at, say, 5-6 Mbytes a second, than one that can only be written at 1 Mbytes/s.

3, you want to use your card in, say, a fast, non-low-end digital camera too. Then, the faster, the better.

If none of the above applies to you (you only plan to use your card inside your PDA, don't want to transfer high amounts of data to it as quick as possible and don't want to plan relocate PIE/Netfront cache onto it), then, getting a slower (=cheaper) card will be perfectly OK. This is because the PDA itself, being a device of a highly constrained architecture, can't utilize the extra speed fast cards offer.

quote:For hp 2210 users: have you experienced any problems with one of them?Which manufacture & type do u recommend which is going well with the 2210?

I've been using several card brands with my 2210, both CF and SD. All of them worked very well with the device. I haven't read horror stories / incompatibility reports in HP forums either. I'd say any card will work with your 2210 too.

I would also add the following:

As you have two memory slots, you can also do the following.

If you have any other consumer electronic gadget (for example, a digital camera) that also needs either a CF or an SD card, particularly, if it needs a large and/or fast one, and you plan using the card in both devices, then, consider the following:

1, get a fast and large, and, therefore, expensive CF/SD card for being used in both of your devices.
2, also, get a lower-capacity, not necessarily the fastest, and, therefore, cheap card only for being used in your PDA to store your PDA applications, documents on. This card will contain all your applications you install on a storage card, while the fast/big one will be in your PDA sometimes. This also means these two cards should be the opposite: if your "transferrable" card is a CF, then, to store your apps and data on, get an additional, cheap SD and vice versa.

Then, you get the best of the two worlds:

1, you will always have (without the need for removing it) a card in your PDA with all your apps and docs; so, you won't really have RAM shortage problems.

If you can guarantee that this card is never removed from your PDA, then, you can even relocate your Pocket Inbox attachments (http://www.firstloox.org//forums/showthread.php?t=3483 ) to it (Pocket Inbox attachment relocation is extremely sensitive for removing the card - read my just-linked article on why this is the case). Also, you can be sure that all your apps will always be accessible because you only remove your other card.

2, and, you will have a superfast (which is quite important in a desktop card reader), large card when you really need it. But, as you don't install any apps/don't put your docs you always need on it, you can freely remote it from your PDA any time to be used elsewhere and/or you transfer some stuff from/to it in a card reader.

BTW, the thread athttp://www.pocketpcthoughts.com/forums/viewtopic.php?t=39879 also discusses the 2210 and exactly the same question.

Thank you very much :)

Ayman Sousa

Some interesting discussion can also be found athttp://www.smartphonemag.com/forum/topic.asp?TOPIC_ID=16759