This video shows all the Monsters and all their drops in Castlevania: HD, as well as all of the items in the game. !*SOME OF THESE ITEMS YOU CANNOT GET LEGITIMATELY! ASK ME IF YOU CAN GET IT IN THE COMMENTS AND IF I KNOW, I WILL TELL YOU*! I used Gambler Glasses to see the item drop percentages and Soul Eater Ring to see the soul drop percentages.
How to use: Obviously I'm going too fast to read everything, so just find your monster or item and pause the video.
Google spreadsheet of the items(not made by me. Made by clavocruz on GameFAQs.): https://spreadsheets.google.com/ccc?key=0AjsATrw4vwdodFpwYmhpV0hXYS0zLU5ubk9EQXhQS0E&hl=en#gid=0