diff --git a/play.lua b/play.lua
index d980273..c69a3c8 100644
--- a/play.lua
+++ b/play.lua
@@ -213,7 +213,7 @@ local initTasks = {}
 for _, batch in ipairs(initBatches) do
     table.insert(initTasks, function()
         while true do
-            local resp = http.post({
+            local resp,http_error = http.post({
                 url = server_url .. "/api/framepack?" .. batch.urls[1],
                 headers = { ["Content-Type"] = "application/json" },
                 body = textutils.serializeJSON({ urls = batch.urls }),
@@ -231,10 +231,15 @@ for _, batch in ipairs(initBatches) do
                     allFrameData[globalIdx] = batchFrames[idx]
                 end
 
-                print("Cached init batch: " .. batch.start .. " - " .. (batch.start + #batchFrames - 1))
+                print("[V] Cached init batch: " .. batch.start .. " - " .. (batch.start + #batchFrames - 1))
                 break
             else
-                print("Retry init batch starting at " .. batch.start)
+                print("[E] " .. batch.start .." "..http_error)
+                
+                if http_error == "Response is too large" then 
+                    error("[E] Frame packet size exceeds 16MB. \nPlease try adjusting the screen size or resolution.")
+                end
+
                 sleep(0.5)
             end
         end
@@ -345,7 +350,9 @@ local function httpResponseHandler()
                             allFrameData[globalIdx] = batchFrames[idx]
                         end
                     end
-                    print("[V] Cached batch: " .. batch.start .. " - " .. (batch.start + #batchFrames - 1))
+                    local sizeInMB = #binData / (1024 * 1024)
+                    
+                    print("[V] Cached batch: " .. batch.start .. " - " .. (batch.start + #batchFrames - 1) .." ("..tonumber(string.format("%.1f", sizeInMB)).."Mb)")
                 else
                     print("[R] Unpack failed for batch " .. batch.start .. ": " .. tostring(batchFrames))
                     -- 标记这些帧可重试
@@ -361,7 +368,7 @@ local function httpResponseHandler()
                 pendingRequests[url] = nil
                 batch.retry = (batch.retry or 0) + 1
                 if batch.retry < 3 then
-                    print("[R] Retrying batch " .. batch.start .. " (attempt " .. (batch.retry + 1) .. ")")
+                    print("[R] Retrying batch " .. batch.start .. " (attempt " .. (batch.retry + 1) .. ") Error: "..handleOrErr)
                     -- 允许重试
                     for j = batch.start, batch.start + #batch.urls - 1 do
                         downloadedFrames[j] = nil
@@ -369,6 +376,8 @@ local function httpResponseHandler()
                     -- 重新触发 cacheAhead 下一轮会重发
                 else
                     print("[X] Giving up on batch " .. batch.start)
+                    print("[E] " .. batch.start.." "..handleOrErr)
+
                     -- 永久失败，不再重试
                     for j = batch.start, batch.start + #batch.urls - 1 do
                         downloadedFrames[j] = true