Looks like a 1N4003 will work also since VR is 200V.
However, I am wondering since the1N4003 Vrms is 140V, is it better using the 1N4004 since the Vrms is 240V and VR is 400V?
I was wondering however... is there something with performance enhancement with using a certain brand diode versus another?
Are there more efficient rectifiers maybe also that are packaged differently worth considering? I was thinking regarding capacitance maybe there might be something that will make a smoother upper envelope maybe needing less capacitance down circuit to level or maybe faster response time like a 1N5806 or better a 1N6638 (low surge though).
I'm thinking this looks the best RGP10D by Vishay. I almost went with the RFUS20TM4S by Rohm... though I think way overrated for this app.