Max resolution on DVD is 720x480, so the one showing you 954 is probably wrong. Are you sure you have the correct settings in Handbrake though? I use it all the time and files are consistently good looking (source material willing) so I think your settings may be off. What are you entering for anamorphic and aspect ratio (strict, loose, etc)?
AVR: Denon X3300
F/C/R: Polk RTi A9's / CSi A6 / Speakercraft AIMWIDE 3 / Sub: SVS PB12-NSD
Sony XBR-75X940D, Toshiba HD-A30, Nvidia Shield TV (2015), Xbox One S, PS3
PC: Core i7, 16GB RAM, 512GB ssd + 4TB hdd, GTX 970 SSC