今天買了一片 Apacer 8G micro SD，覺得他的容量怪怪的，就用 Linux 看了一下
15523840 512-byte logical blocks --> 15523840 * 512 /1000/1000/1000 = 7.94G
怎麼算都不到 8G , 打過電話問過客服，請他說明 8G 怎麼算，
他很明白的說這片怎麼算都不會到 8G ... 這樣情況合理嗎？客服還一直推說每一家都一樣。消費者只能自認倒楣？
有人有同樣的問題嗎？還是我的手氣比較差？
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[16812.606636] scsi 12:0:0:0: Direct-Access Generic USB SD Reader 1.00 PQ: 0 ANSI: 0 CCS
[16812.606878] sd 12:0:0:0: Attached scsi generic sg2 type 0
[16812.618225] sd 12:0:0:0: [sdc] 15523840 512-byte logical blocks: (7.94 GB/7.40 GiB)
[16812.618596] sd 12:0:0:0: [sdc] Write Protect is off
[16812.618598] sd 12:0:0:0: [sdc] Mode Sense: 4b 00 00 08
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手上另一片 Sandisk micro SD 算一下超過 8G
15949824 512-byte logical blocks --> 15949824 * 512 /1000 /1000/1000 = 8.16G
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[17028.772549] scsi 13:0:0:0: Direct-Access Generic USB SD Reader 1.00 PQ: 0 ANSI: 0 CCS
[17028.772810] sd 13:0:0:0: Attached scsi generic sg2 type 0
[17028.774787] sd 13:0:0:0: [sdc] 15949824 512-byte logical blocks: (8.16 GB/7.60 GiB)
[17028.775283] sd 13:0:0:0: [sdc] Write Protect is off
[17028.775285] sd 13:0:0:0: [sdc] Mode Sense: 4b 00 00 08
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