The devs behind discmaster have been quietly working on discmaster 2 over the past several months.
It won't be ready for several more months. They are hoping it's ready before 2025.
Here are some of the new features and improvements:

New Items!

The biggest change is that new items can now be added to discmaster 2! It took a massive refactoring of the code behind the scenes, but when discmaster 2 launches, new stuff can be added to the new site on a continual basis. (The current discmaster 1 is basically 'stuck in time' as a static snapshot)

New Features

• 3D poly objects are now supported and can viewed (textured or wireframe), rotated and zoomed (demo video)
• Shockwave Flash files can be played directly in the browser example video
• Any CD/disk/file/folder can be opened in a Mac or PC emulator
• Audio and video files are now transcribed and spoken words within them can now be found with search
• When viewing a text file, you can now change what type of encoding you want to view the file as
• You can now download folders in addition to files
• ANSi art files can now be viewed as animations with different baud rates and fonts
• You can now search for items on the category pages
• Unsupported/unknown files now show a hex dump view of the file contents
• You can add ?hex at the end of any view URL to force it to show the hex instead of the normal viewer
• You can add ?text at the end of a view URL where the file is not known to view it as text instead
• You can add ?output=json at the end of any 'view' URL to get the JSON version of the page
• Symlinks that point to other files within the same item now properly link to that item when clicked

Improvements

• All files have been re-converted with the latest dexvert which supports hundreds of additional file formats and improved detection and conversion of previously supported formats
• Image filenames on browse/search pages are now visible even if you don't have CSS support. Additionally the filenames can be highlighted/selected and are findable via Ctrl-F. (Previouslly these names were generated via CSS which had a negative side effect of making them un-selectable and only visible on browsers with CSS support)
• Image filenames now show up on more image sizes. They also should be smaller on smaller images so they don't cover up as much of the image
• HTML files from items now render better in regards to differing charsets and links to other files
• Downloading an HTML file now downloads the original un-modified file (before there was no way to access the un-modified version, you always got the discmaster modified HTML)
• Changed speed dropdown to be a regular SELECT element for better browser compatability (before it was a hacky CSS/label monstrosity)
• Browsing pages and search results now have sections for each type of file (before many were combined into 'Other')
• File sizes are now shown to 1 decimal point such as 1.4MB (before you'd just see 1MB)
• Various ANSI-art formats now show title, author and group meta information when available
• Macintosh files show their file type and creator code
• To save on disk space, hybrid Mac/PC CDs now replace duplicate files on the mac side with symlinks to the PC versions.

Search Improvements

• Extensions can now be searched separately from the main query. This allows you to restrict content querys to only include files with a given extension or exclude specific extensions. The filename still has the extension in it, so just searching 'png' in the main 'search for' query will still return *.png files
• Can search for folder names
• You can now use ? in the search to match any character, such as t?st matches test
• You can now use astericks * at the *start or end* of a word to find words ending or starting with a word
• Words can now be grouped with (parenthesies AND (use | combinators))
• Results now properly honor multiple - uses instead of just the first one
• When choosing to 'Omit Dups', the number of duplicates per file is shown. You can also sort by the # of dups
• Results now show original letter case of filenames
• Results now correctly sort by relevance when chosen (before it was always filename when relevance was chosen)
• You can now sort by: family, format and file path (groups files together in their respective folders/archives according to their path in the item)
• Improved support for non-english searches, especially Japanese
• You can now search for 'detections' to find things that were detected by dexvert's detector but not necessarily identified or handled by dexvert. Also searches mac file type/creator codes.
• You can choose to 'Omit Unsupported' to exclude any files that are not currently supported by dexvert/discmaster
• Newly added items are immediately available to search (used to be a 1-2 day delay)
• Can search the full contents of indexed HTML pages (Before it only indexed the text content of the page, which meant you couldn't find script content, specific HTML tags, etc.)
• Can search for files based on the file hash (blake3) by adding &b3sum= to the search query in the address bar
• The JSON output of search now returns a TON more information about each result (including file hash (blake3/b3sum))
• Can order results by format and family
• When including the item name in search results, the item category is now also shown
• The search URL now uses human readable words for Genre and Category searches instead of id numbers
• Fuzzy Matching is now enabled by default and instead a 'strict matching' option is available if you want to disable it

Other Changes

• All pages are now dynamically generated on request instead of being pre-generated and static. This allows future bug fixes and improvements to be added instantly for all items, rather than needing to re-generate a billion static files
• Search counter added to index page