But having Mark 2 certified memory cards would be beneficial, as it would not only prepare you for the future but it would also lessen the time needed when writing huge amounts of data.ġ. Pro Duo memory cards would be sufficient in case you do not have any device that needs the fast write speed. The only difference between Pro Duo and Mark 2 cards is in the minimum speed that data can be written on it. You might also be able to use standard Pro Duo cards on high speed devices but you would not be able to use the high speed functions of your device. You can still use Mark 2 cards on other Sony products like the PSP. Mark 2 memory cards are simply the same cards but made much faster to allow huge amounts of data to be written without any problem.Īlthough Mark 2 cards are meant to operate on devices that need high data write speeds like video cameras, it does not break compatibility with older and slower devices. Although most cards are capable of writing at high speeds, this is not constant and for non mark 2 certified cards, it can drop well below the minimum and would make it unsuitable for AVCHD recording. This data needs to be written to the memory card as fast as possible, or else some data would be lost. Video cameras produce a certain amount of data every second as it captures video and audio. These cards are intended to be used on AVCHD capable video cameras. Mark 2 is a certification that is awarded to certain cards that can ensure a minimum data transfer speed.
The Pro Duo is one result of this evolution that resulted in a memory card with larger capacity, faster transfer speed, and a smaller form factor compared to its predecessors. The memory stick has evolved over the years to cope with the greater demand in capacity. Sony has been producing memory cards that are meant to be used with their electronic products.
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