{"id":29461,"date":"2026-05-10T00:55:47","date_gmt":"2026-05-10T00:55:47","guid":{"rendered":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/?p=29461"},"modified":"2026-05-10T00:55:50","modified_gmt":"2026-05-10T00:55:50","slug":"%e5%86%99%e7%9c%9f%e3%81%8c%e3%81%aa%e3%81%84","status":"publish","type":"post","link":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/?p=29461","title":{"rendered":"\u5199\u771f\u304c\u306a\u3044"},"content":{"rendered":"\n

メインのMac (M4 Mac mini)の写真ライブラリーで，昔の写真を探していたところ，2007年2月15日と4月1日の間，および同年4月12日と7月8日の間の写真がありません．<\/p>\n\n\n\n

前者の間には特に高校卒業後30周年の同窓会があったはずで，実はその写真を探したのですがなくて全く残念です．<\/p>\n\n\n\n

心当たりとしては4月頃からJPEGの写真HEIFに変換して入れ替える作業を断続的に行っていることです．<\/p>\n\n\n\n

こういうときのTime Machineなので，まずは作業前の2月のバックアップを，今の写真ライブラリーに上書きしないで復元しました．<\/p>\n\n\n\n

そしてその復元したほうで探しましたが，ありません．同じ期間が抜けています．ということでJPEG→HEIFの変換作業によるトラブルではないことが分かりました．<\/p>\n\n\n\n

次は，一番古いBackupである2025年8月9日から復元しましたが，やはりその区間の写真はありません．<\/p>\n\n\n

\n
\"\"<\/figure>\n<\/div>\n\n\n

古いMacBookの最終バックアップが出てきたので，後でそれを見てみます．<\/p>\n","protected":false},"excerpt":{"rendered":"

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