The Dragon Ball Z Season Four DVD box set includes six DVDs that contain 32 episodes. The first three discs contain six episodes, discs four and five contain five episodes, and the sixth disc contains four episodes and the DVD extras.

On the main menu of the first five discs, you can choose to watch all the episodes, watch the disc with the marathon feature, choose which episode you want to watch, and set up your language and subtitle options. One of the best things about this DVD set is the marathon feature. This feature allows you to watch all of the episodes back-to-back, but you only see the opening credits once; the ending credits are not shown when watching with the marathon feature. This feature really helps when you're trying to watch all the episodes on a single disc in one sitting. Luckily, none of the story arcs on this set were dragged out for a ridiculous amount of time.

In the setup menu, you can choose between the English audio from when the series originally aired on television, the English dialogue with the original Japanese music, and Japanese dialogue and music. In this menu, you can also choose to turn the subtitles on and off.

The menu on the sixth DVD adds in a link for the special features. However, there isn't much of anything in the way of special features included with this set. All you get are the textless versions of the opening and ending credits (this feature was already included on the first three DVD box sets), and trailers. Unfortunately, these features aren't very "special." The trailers included on this set are for the Dragon Ball Movie 3-Pack, Dragon Ball Z, Origin, Blue Gender, Ragnarok, and the Z-Store.

Another problem with this set is the audio mastering levels. FUNimation's opening splash screen and the trailer at the beginning of each DVD were mastered at a high audio level, but the menu and the actual episodes were mastered with a rather soft audio level. It's frustrating to have to sharply turn the volume down when you put the DVD into the player, and then having to turn the volume back up considerably in order to hear the audio for the episodes.

While I was disappointed with the audio levels and the lack of special features, this set is still a "must get" for any Dragon Ball Z fan that wants all the episodes on DVD. This 32-episode set sells for anywhere between $30 and $50. It's not too bad of a price, considering that you get 32 episodes in the set. However, it would be a little more worth the cost if FUNimation had put more effort into the special features.

In order to write this review, I checked out a copy of this DVD box set through the King County Library System.

Disc 1	Disc 2	Disc 3
The Heavens Tremble Black Fog of Terror Battle in Kami's Lookout Fight With Piccolo Call For Restoration Suicidal Course	Extreme Measures The World Awakens Brief Chance for Victory Krillin's Proposal Frieza's Counterattack The Mysterious Youth	Another Super Saiyan Welcome Back Goku Mystery Revealed Goku's Special Technique Z Warriors Prepare Goku's Ordeal

Disc 4	Disc 5	Disc 6
The Androids Appear A Handy Trick Double Trouble for Goku Upgrade to Super Saiyan The Secret of Dr. Gero	More Androids Follow Dr. Gero Nightmare Comes True Goku's Assassin Deadly Beauty	No Match for the Androids Last Ditch Effort Closing In Unwelcome Discovery Bonus Features