It looks like you've provided some text and a key-value pair with the key being '3delite MKV Tag Editor 1.0.178.270 download'. I'd be happy to help you extract relevant information from this text.

Here are some features of the 3delite MKV Tag Editor 1.0.178.270:

* Edit Matroska tags in MKV, MKA, MKS, and MK3D files

* Manage cover arts

* Search for and download movie details and poster from The Movie Data Base with a couple of clicks

* Batch rename files by their tags

* Powerful search functionality to find video and audio files in your library

* Full unicode support

Additionally, you can also use this software to:

* Edit MP4 tags in MP4, M4V, M4A, M4B, ALAC (Apple Lossless), and 3GP files (features of 3delite MP4 Video and Audio Tag Editor)

* Get tags and posters for videos from The Movie DB with a couple of clicks

The software is available for Windows 7, 8/8.1, and 10.

As for the file size, it's approximately 198.86 MB.

Let me know if you'd like to download the software or require any further assistance!