為何 DVD 無法播放？

欲播放 DVD，您需安裝正確的「解碼器」。解碼器為一種能讓應用程式讀取特定視訊或音訊格式的軟體。若您的影片播放軟體找不到合適的解碼器時，可能會提供指以引指導您如何安裝；若無指引則需透過手動方式安裝解碼器 — 您可以向他人求助如何進行操作（例如您的 Linux 發行版所屬之支援論壇）。

DVD 也會透過一種名為 CSS 的系統進行「防拷保護」。此舉雖能保護 DVD 上的內容遭拷貝，但也導致一些 DVD 在未安裝額外軟體時無法播放。許多 Linux 發行版都有收錄該軟體，但並非在每個國家都能夠合法地使用。請聯絡您的 Linux 發行版以了解更多資訊。

DVDs have a region code, which tells you in which region of the world they are allowed to be played. If the region of your computer’s DVD player does not match the region of the DVD you are trying to play, you won’t be able to play the DVD. For example, if you have a Region 1 DVD player, you will only be allowed to play DVDs from North America.

It is often possible to change the region used by your DVD player, but it can only be done a few times before it locks into one region permanently. To change the DVD region of your computer’s DVD player, use regionset.

You can find more information about DVD region codes on Wikipedia.