To lean closer to the original question...
You may already know you could swap a higher volt rated cap (but not a lower voltage). But more often then not, a higher voltage cap of same or similar design will be larger in size. So make sure you careful check the measurements on the data sheet.
The photo’s you posted are of different uf. One is 1.0 uf while the other is 0.1uf. I’m not familiar with the circuit you are modding but unless you totally understand the math involved for why the designer chose the original value, you won’t want to change it.
A quick search didn’t reveal to me what Vishay means by ERO. It may be helpful to know that every capacitor company will have a bunch of almost similar model caps but are differentiated (or should i say optimized) to perform better in a specific circuit. Some may be built to perform better in power supply switching circuits while others perform the same all the way up to MHZ land at high voltage while other’s aren’t linear in one way or another when challenged with high voltage that high in frequency. It may seam all that shouldn’t matter to us in Audio circuit land since Audio doesn’t have that bandwidth, but you never know. I’ve had a few preamp circuits change drastically for the better with a cap replaced that shouldn’t have made any difference based on the data sheet, while caps that should have improved the audio only exchanged one advantage by taking another away.
My point basically is any cap change is going to be circuit dependent as to how much the audio is altered. I’ve found it more useful to ask what circuit a person used a cap in when they said they prefer it over another. In the end, the only way you’ll know is trying it and living with it for around 100 hours to know if you like the trade-offs.
Don’t forget, different sound doesn’t mean it’s better, it just means it sounds different.
Cheers,
Jake