Eva the maid V2 in main menu HD

INSTALLATION WITHOUT SOUND FROM VIDEO

If you only need background video and no sound, you need to download the silent version archive. In this case, you'll need to unzip the file  EVE_Title.bk2  to  ...steamapps\common\StellarBlade\SB\Content\Movies. Before installing, it's best to move EVE_Title.bk2 from this folder (as a backup). If you have a new game+, you need to do the same with EVE_Title_Fusion.bk2 and rename the file from the downloaded archive. After this, the mod will look like the picture above (only video and HD). In this case, only the background will be replaced with a video, the sound will remain from the game.

INSTALLATION WITH SOUND

In this case, the first thing you need to do is visit this page https://www.nexusmods.com/stellarblade/mods/529?tab=description and install the required mods from there. Otherwise, the sound won't work. Required installation of the Silent Menu and Menu Randomiser mods. Even if you're only going to use this mod to replace the background, you won't be able to run it without a randomiser. After that, you need to unzip the file "Menu_0.bk2" from the Version with sound archive along the path ...steamapps\common\StellarBlade\SB\Content\Paks\LogicMods. The next step is to place the "Menu" folder from this archive along the path ....steamapps\common\StellarBlade\SB\Content\Movies. The mod is installed and the audio from the video will be in the main menu. In this case, you don't need to do anything with the EVE_Title.bk2 file, as the mod will launch the menu_0.bk2 file.

CRITICAL NOTE

If you already have multiple backgrounds installed, before installing, you need to change the file name to menu_0.bk2 and replace 0 with the desired number. This is necessary to avoid overwriting the already installed background with the same number. After that, you can proceed with installing the mod.

A version merged  with this mod has been added to the optional files: https://www.nexusmods.com/stellarblade/mods/2865

Extract and rename.

Video by juicyneko