我本身有一隻cd lens cleaner, 好耐好耐先會用佢來洗下cd/dvd drives/dvd player
幾有效
basically免得過都唔會用

最大問題係我婆婆部大陸某出名牌子的萬能dvd player洗完都唔多惦, 播正版dvd依然會lag, 只好過未洗之前read唔倒dvd咁解
播cd就完全沒問題, 我諗係個dvd lens有好多dust阻住
( 佢有養貓, 某一次eject番隻dvd出來見到有幾條貓毛痴住隻dvd<--- this should be the main cause )

見過話要用dvd lens cleaner先至有效
但我又search過話用compressed air又或者q-tip/cotton + 特製solution/isopropyl alcohol仲好過用lens cleaner, 因為lens cleaner會propably damage個lens, 可惜以上方法看過demonstration之後我實在唔敢試....

想問問邊隻dvd lens cleaner用得過? 想暫時用lens cleaner試下先, Thx