TDRead has been renamed and released to Aminet as TDTool. You can download it from Aminet here.
Or you can download directly from this server: TDTool.lha and TDTool.readme. These links will always point to the latest version.
I spent some time on it before release, mainly adding a new DEVICE command line parameter that allows you to specify a different block device, such as gvpscsi.device for example.