PS3 - FAT32 - 4GB size limit

Problem once i thought cannot be solved, got resolved unexpectedly!!!

Problem:
1. My PS3 was not detecting some portable external HDD
2. The HDD detected by PS3 is not allowing me to copy file of size 6GB

Solution:
1. PS3 will take all partition which is having file system FAT32. NTFS won't work for him :-).
2. FAT32 has 4GB file size limitation.

Cluster size = 32KB --> 2^15
Tottal Cluster = 28bit --> 2^28
Max partition size = 2^(28+15) --> 2^43 --> 8 terabyte

File size is stored as a 32 bit number (2^32 = 4GB).
So FAT32 won't allow files which is having size more than 4GB.

Reference:
understanding-file-size-limits-on-ntfs-and-fat
http://en.wikipedia.org/wiki/File_Allocation_Table