Today I forgot to bring the 8 GB mem-key when I left the room in the morning, so fleetingly thought about recording on the 512 MB SD-card in the PocketPC. Then remembered that the Mandir laptop doesn't have a card-reader built-in. Anyway, tested out the speeds, found the times taken to read and write a 100 MB file to the various devices:
Transcend 8 GB JF220 - 20 sec write, 5 sec read. 40 Mbps w / 160 Mbps r.
Sandisk 1 GB - 20 sec write, 8 sec read. 40 Mbps w /100 Mbps r.
Kingston 512 MB SD-card - 35 sec write, 14 sec read. 23 Mbps w / 57 Mbps read.
Not a very scientific test, since just transferring the 100 MB file from one hard disk to another took 7 sec - the hard disk speeds probably interfere with the results above. But gives a rough idea.
At a time, the Transcend cannot record more than 2 mono audio tracks at 16 bit 44.1 kHz from Cubase - trying to add any more results in buffer underrun and Cubase stops recording. That's just 1.4 Mbps. Relatively, then, the SD-card with a card reader can probably not handle more than one mono audio track at a time while recording.
The unbranded All-in-One card reader I have also has some issues. Twice it caused the drive to vanish while reading the 100 MB file from the SD-card - power over USB cable issue, most probably. Connected it to another USB slot, checked with scandisk and found no errors, copied OK.
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