as per my visual observations , both were made by sandisk (as per product package photo) ,the left was (by rashi) a year 2009 end manufactured (dont look for mafd:month on sticker, in many times its wrong),and the right (by tradus) were a 2009 earlier package.you can verify online via sandisk with serial nos...
In India Rashi, HCL & ingram imports Sandisk products, the above product sold by tradus is a parallel imported product, may be from Hong Kong ,for warranty the customer has to contact tradus itself.
We also came to know that many products sold by Tradus are parallel & even grey market items, this may be to sell them online with cheap prices (!!!!)