Read SDCard in binary mode in android phone

[varun.285]

Hello,
I want to read SDCard data from android mobiles using eclipse(programmatically).
For that i want to open SDCard in binary mode,So that i can read SDCard sector by sector.
the problem is when i am debuging a programm using JNI in c++ its not going to take access in binary mode..

Any body know about, how to open a sdcard in binary mode using eclipse or java programming.
Any suggestion will apperciated.

Thanks And Regards:
Varun Bansal
varun.285@gmail.com