Large areas of FF pattern

[gterry]

What does it mean when there are large areas of FF in reading the data in hex? Is that something left over from a full format or is there a significance to the FF pattern?

[DataMedics]

It could be that the bits are inverted. 00 when inverted appears as FF, so that could be the blank space.

[Roman_TS]

FF might means empty place. Ask your customer - how much data on his flash drive that you are going to recover

[gterry]

Thanks guys, I thought the same just wanted another opinion