角松敏生 30周年ライブ Blu-rayの高価買取価格

The item you mentioned appears to be a Blu-ray release of TOSHIKI KADOMATSU's 30th Anniversary Live concert, which took place on June 25, 2011, at Yokohama Arena. TOSHIKI KADOMATSU is a renowned Japanese singer-songwriter known for his contributions to the J-Pop genre.
The product code you provided (4988017678015) is likely the barcode for the Blu-ray, and "返品種別A" typically indicates it's eligible for returns under specific conditions in Japan.
If you’re looking for specific details about the concert, such as the setlist or special features included in the Blu-ray, please let me know!