This procedure was repeated until the card was full and then all the data was averaged. To be able to accurately measure the time, you need to practice and write down the time for each test. After a few tries, you should get repeatable numbers that you can trust. I would appreciate it, if you would send me the data so we can expand the data base. Please follow the procedure carefully.
Bad data is worse than no data.
Preferably, use a stopwatch, but careful timing with a regular watch will work. One concept is to never format the Microdrive in the camera because the camera does not understand about defective sectors. Instead, it is suggested to format it in a PC and afterwards running Scandisk or even better, Norton DiskDoctor, to find and mark bad sectors. In day to day use, the pictures are then just deleted from the Microdrive without reformatting it. This concept sounds logical, although I have not investigated it.