The phrase "data are recorded" is correct and usable in written English.
You can use it when talking about the recording of information. For example, "The scientists recorded the data from the experiment."
Almost without exception, data are recorded in a form suitable for processing by computers.
More recently, with the advent of inexpensive, reliable computer disk drives, the data are recorded on disks.
These data are recorded in Table 4.
Large amounts of data are recorded in computational complexity.
New acquisition data are recorded in the database.
The data are recorded every second during driving.
All data are recorded internally on a flash card.
All presented data are recorded from our Institute at KIT.
Data are recorded automatically on memory cards, periodically transported to ground by returning vehicles.
and MODIS reflectance data are recorded at vastly different sun and viewing angles.
These data are recorded as continuous temperature or temperature gradient logs.
