Mass data Upload

Hi Guys,

I have to change the contents of some fields(may be 2 fields) in material master record for around minimum some 7000 materials. For which always we can go for BDC or mass maintenance.

My question is, when the records are too much, then whether the standard mass maintenance tool is recommended for so many materials. Pls suggest which is the better option (BDC or Mass maintenance ) AND why???

Regards

Mahesh