Hello listers,
                  I'm trying to extend an HFS-volume to an HFS+ volume. Going by the specifications I've gathered the major differences which would play a role in the construction of an image.....
 
1) Difference in Allocation Block Size
2) Difference in basic structure of B-Tree components , MDB Vs. Volume Header etc. (incl. respective fields, kind of fields etc.)
3) Difference in NodeSize of the catalog
4) Thread records must be maintained even for files in HFS+
 
Anything else I've left out / overlooked ?
All I want to achieve is to modify my algos for HFS to work for HFS+ as well . I guess the variation in the allocation block size would help optimize disk space for HFS+.
 
Any other major / minor aspect I should be considering ?
 
Regards,
Nandini