When I was purchasing "Roxio Toast 8" on Roxio Online Store, I checked the price of both US and Japanese site. In Japanese Store, its price is 12800yen (128USD), on the other hand, in US store, the price is 78.99USD (retail price is $99.99 and $20 will be refund)

US version contains also Japanese translation.

"Yen" is getting stronger now, you should choose US online store if products you want are available in US Store.