Hey,
Don’t know if you’re still looking for a solution but I like using this converter for vhs tapes but I have never tried it for Beta…dunno if it’ll work for that to be honest. Otherwise I’m sure there’s a conversion service nearby (there is for me at least) where you can take tapes and have them converted into dvds but that might be expensive depending on how many tapes you have. Try going to a local camera/photography shop and maybe get a quote from them. Also, just wanna make sure this is for personal use and you’re not burning copyrighted products 🙂 Hope this helps (if you were still wondering)!